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In a certain high school, there were 6 students who were not old enough to vote for every 1 student who was old enough to vote. If there were 840 students in the school, how many students were old enough to vote?

In a certain high school, there were 66 students who were not old enough to vote for every 11 student who was old enough to vote. If there were 840840 students in the school, how many students were old enough to vote?

Full solution

Q. In a certain high school, there were 66 students who were not old enough to vote for every 11 student who was old enough to vote. If there were 840840 students in the school, how many students were old enough to vote?
  1. Identify Total Parts: There are 66 students not old enough for every 11 who is, so it's like 6+1=76+1=7 parts total.
  2. Divide Total Students: Now we divide the total number of students by the total parts, 840÷7840 \div 7.
  3. Calculate Number of Students: Doing the division gives us 840÷7=120840 \div 7 = 120.
  4. Calculate Number of Students: Doing the division gives us 840÷7=120840 \div 7 = 120.So, there are 120120 students old enough to vote, cause that's the 11 part.

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