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Solving Quantitative Problems
g Quantitative Problems" provides practical lved by using basic arithmetic operations. 
s mathematical thought and the ability to natical problems. The level of the arithmetic rformed is elementary.
e test, working time 45 minutes
tructions before you start with the examples. ome problems which you have to solve.
a factory during the holidays. He earns le works 8 hours a day, 5 days a week. How e earned at the end of 4 weeks of work?
solution:

=10 Euros 
×8 hours

= Daily wage 
x5 days

= Weekly wage 
x4 weeks
1: degree of difficulty low
in 650 litres of a soft drink. How many litres Id?
2: degree of difficulty low
3 hours long and a working week is five an receives a wage of 25 Euros per hour. nger than 8 hours per day she receives xtra hour she works. In 4 weeks, she earns
d she work altogether in those four weeks?
Sample question 3: degree of difficulty medium
Corinna has a photo which is 
9cm wide and 
6cm high. She would like to enlarge it to a width of 
15cm. The ratio of width to height has to remain the same. How high will the photo be?
(A) 
11cm
(B) 
10cm
(C) 
9cm
(D) 
8cm
Sample question 4: degree of difficulty medium
Dora and her three siblings Anton, Berta and Carl are an average of 5 years old. Anton is 2, Berta 6 and Carl 7. Dora, her cousin Hanna, Hanna's brother Emil (18), Hanna's sister Franka (6) and Hanna's brother Gustav (1) are an average of 10 years old. How old is Dora's cousin Hanna?
(A) 5
(B) 10
(C) 15
(D) 20
Sample question 5: degree of difficulty high
Together, two sports clubs (A and 
B ) have 
x members; 
A has a members and 
B has 
b members. Some of the persons are members of both sports clubs. Which of the following expressions describes how many persons are members in only one of the two sports clubs?
(A) 
x+a-b
(B) 
2(a+b)-2x
(C) 
ab-2x
(D) 
2x-(a+b)
Sample question 6: degree of difficulty high
A bottle 
X is filled entirely with orange juice. It contains 1 I of orange juice. Maria pours orange juice from this bottle 
X into two empty bottles 
Y and 
Z. Bottle 
Y is half as big as bottle 
X (in terms of volume). After the filling operation, bottle 
X still contains 0.6 I of orange juice; bottle 
Y is 
1//5 full of orange juice; and bottle 
Z is half-full of orange juice. Maria fills bottle 
Z with water until the bottle is full. How much liquid does bottle 
Z contain?
(A) 
0.1I
(B) 0.31
(C) 0.41
(D) 0.6 I
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Solving Quantitative Problems\newlineg Quantitative Problems

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Q. Solving Quantitative Problems\newlineg Quantitative Problems
  1. Tom's Wage Calculation: Tom's hourly wage is 1010 Euros.\newlineCalculation: 1010 Euros/hour.
  2. Tom's Weekly Earnings: Tom works 88 hours a day.\newlineCalculation: 1010 Euros/hour ×\times 88 hours/day = 8080 Euros/day.
  3. Corinna's Hourly Earnings: Tom works 55 days a week.\newlineCalculation: 8080 Euros/day ×\times 55 days/week = 400400 Euros/week.
  4. Corinna's Extra Hours: Tom works for 44 weeks.\newlineCalculation: 400400 Euros/week ×4\times 4 weeks = 16001600 Euros for 44 weeks.
  5. Photo Enlargement Ratio: The ratio of concentrate to soft drink is 1:41:4. Calculation: 650litres×4=2600litres650 \, \text{litres} \times 4 = 2600 \, \text{litres} of soft drink.
  6. Dora's Age Calculation: Corinna earns 2525 Euros per hour for the first 88 hours each day.\newlineCalculation: 2525 Euros/hour ×\times 88 hours/day = 200200 Euros/day.
  7. Hanna's Age Calculation: For each hour over 88 hours, she earns 1.51.5 times her hourly wage.\newlineCalculation: 2525 Euros/hour ×1.5=37.5\times 1.5 = 37.5 Euros for each extra hour.
  8. Total Club Members: Corinna works 55 days a week.\newlineCalculation: 200200 Euros/day ×\times 55 days/week = 10001000 Euros/week for the first 88 hours each day.
  9. Members in One Club: Corinna earns 37.537.5 Euros for each extra hour she works per day.\newlineAssumption: Corinna works extra hours every day.\newlineCalculation: 37.5 Eurosextra hour×X extra hours/day×5 days/week=Y Euros/week\frac{37.5 \text{ Euros}}{\text{extra hour}} \times X \text{ extra hours/day} \times 5 \text{ days/week} = Y \text{ Euros/week} for extra hours.
  10. Expression Deduction: The original ratio of width to height is 9cm9\,\text{cm} to 6cm6\,\text{cm}.\newlineCalculation: 9cm6cm=1.5\frac{9\,\text{cm}}{6\,\text{cm}} = 1.5.
  11. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}.\newlineCalculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm} for the height of the enlarged photo.
  12. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.
  13. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}.\newlineCalculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years.\newlineCalculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age.\newlineCalculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5.\newline15+Dora’s age=2015 + \text{Dora's age} = 20.\newline\text{Dora's age} = 2015=520 - 15 = 5 years.
  14. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}.\newlineCalculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years.\newlineCalculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age.\newlineCalculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5.\newline15+Dora’s age=2015 + \text{Dora's age} = 20.\newline\text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years.\newlineCalculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.
  15. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}.\newlineCalculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years.\newlineCalculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age.\newlineCalculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5.\newline15+Dora’s age=2015 + \text{Dora's age} = 20.\newlineDora’s age=2015=5\text{Dora's age} = 20 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years.\newlineCalculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age.\newlineCalculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10.\newline15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}00.\newline15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}11 years.
  16. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age. Calculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5. 15+Dora’s age=2015 + \text{Dora's age} = 20. \text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years. Calculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age. Calculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10. 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}00. \text{Hanna's age} = 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}22. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}33 has 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}44 members, 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}55 has 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}66 members, and some are in both clubs.
  17. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age. Calculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5. 15+Dora’s age=2015 + \text{Dora's age} = 20. \text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years. Calculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age. Calculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10. 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}00. \text{Hanna's age} = 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}22. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}44 members, 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}66 members, and some are in both clubs.To find the number of members in only one club, subtract the number of members in both clubs from the total. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}77.
  18. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age. Calculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5. 15+Dora’s age=2015 + \text{Dora's age} = 20. \text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years. Calculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age. Calculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10. 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}00. \text{Hanna's age} = 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}22. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}44 members, 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}66 members, and some are in both clubs.To find the number of members in only one club, subtract the number of members in both clubs from the total. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}77.The correct expression is not given directly, but we can deduce it. Calculation: If we add the members of 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 and 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55, we count the members in both clubs twice. So, the expression is 5500.
  19. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age. Calculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5. 15+Dora’s age=2015 + \text{Dora's age} = 20. \text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years. Calculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age. Calculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10. 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}00. \text{Hanna's age} = 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}22. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}33 has 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}44 members, 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}55 has 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}66 members, and some are in both clubs.To find the number of members in only one club, subtract the number of members in both clubs from the total. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}77.The correct expression is not given directly, but we can deduce it. Calculation: If we add the members of 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}33 and 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}55, we count the members in both clubs twice. So, the expression is 5500.Bottle 5511 originally contains 5522 liter of orange juice. Calculation: After pouring, bottle 5511 has 5544 liters left.
  20. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age. Calculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5. 15+Dora’s age=2015 + \text{Dora's age} = 20. \text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years. Calculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age. Calculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10. 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}00. \text{Hanna's age} = 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}22. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}33 has 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}44 members, 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}55 has 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}66 members, and some are in both clubs.To find the number of members in only one club, subtract the number of members in both clubs from the total. Calculation: 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}77.The correct expression is not given directly, but we can deduce it. Calculation: If we add the members of 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}33 and 15cm1.5=10cm\frac{15\,\text{cm}}{1.5} = 10\,\text{cm}55, we count the members in both clubs twice. So, the expression is 5500.Bottle 5511 originally contains 5522 liter of orange juice. Calculation: After pouring, bottle 5511 has 5544 liters left.Bottle 5555 is half as big as bottle 5511 and is 5577 full. Calculation: Bottle 5555's volume is 5599 liters (half of 5511), and it contains (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 511 liters of orange juice (5577 of 5555).
  21. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years. Calculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age. Calculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5. 15+Dora’s age=2015 + \text{Dora's age} = 20. \text{Dora's age} = 2015=520 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years. Calculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age. Calculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10. 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}00. \text{Hanna's age} = 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}22. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}44 members, 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}66 members, and some are in both clubs.To find the number of members in only one club, subtract the number of members in both clubs from the total. Calculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}77.The correct expression is not given directly, but we can deduce it. Calculation: If we add the members of 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 and 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55, we count the members in both clubs twice. So, the expression is 5500.Bottle 5511 originally contains 5522 liter of orange juice. Calculation: After pouring, bottle 5511 has 5544 liters left.Bottle 5555 is half as big as bottle 5511 and is 5577 full. Calculation: Bottle 5555's volume is 5599 liters (half of 5511), and it contains (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 511 liters of orange juice (5577 of 5555).Bottle (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 544 is half-full of orange juice. Calculation: Bottle (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 544's volume is the same as bottle 5511 (5522 liter), so it contains 5599 liters of orange juice.
  22. Orange Juice Bottles: The width of the enlarged photo is 15cm15\,\text{cm}.\newlineCalculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm} for the height of the enlarged photo.The average age of Dora and her three siblings is 55 years.\newlineCalculation: (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 5 years.Calculate Dora's age.\newlineCalculation: (2+6+7+Dora’s age)/4=5(2 + 6 + 7 + \text{Dora's age}) / 4 = 5.\newline15+Dora’s age=2015 + \text{Dora's age} = 20.\newlineDora’s age=2015=5\text{Dora's age} = 20 - 15 = 5 years.The average age of Dora, Hanna, Emil, Franka, and Gustav is 1010 years.\newlineCalculation: (Dora’s age+Hanna’s age+Emil’s age+Franka’s age+Gustav’s age)/5=10(\text{Dora's age} + \text{Hanna's age} + \text{Emil's age} + \text{Franka's age} + \text{Gustav's age}) / 5 = 10 years.Calculate Hanna's age.\newlineCalculation: (5+Hanna’s age+18+6+1)/5=10(5 + \text{Hanna's age} + 18 + 6 + 1) / 5 = 10.\newline15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}00.\newline15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}11 years.The total number of members in both clubs is 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}22.\newlineCalculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}44 members, 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55 has 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}66 members, and some are in both clubs.To find the number of members in only one club, subtract the number of members in both clubs from the total.\newlineCalculation: 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}77.The correct expression is not given directly, but we can deduce it.\newlineCalculation: If we add the members of 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}33 and 15cm/1.5=10cm15\,\text{cm} / 1.5 = 10\,\text{cm}55, we count the members in both clubs twice. So, the expression is 5500.Bottle 5511 originally contains 5522 liter of orange juice.\newlineCalculation: After pouring, bottle 5511 has 5544 liters left.Bottle 5555 is half as big as bottle 5511 and is 5577 full.\newlineCalculation: Bottle 5555's volume is 5599 liters (half of 5511), and it contains (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 511 liters of orange juice (5577 of 5555).Bottle (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 544 is half-full of orange juice.\newlineCalculation: Bottle (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 544's volume is the same as bottle 5511 (5522 liter), so it contains 5599 liters of orange juice.Maria fills bottle (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 544 with water until it is full.\newlineCalculation: Bottle (Anton’s age+Berta’s age+Carl’s age+Dora’s age)/4=5(\text{Anton's age} + \text{Berta's age} + \text{Carl's age} + \text{Dora's age}) / 4 = 544 now contains 5599 liters of orange juice + 5599 liters of water = 5522 liter of liquid.

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