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(7) A tin contains 20 l of petrol. Due to leaberage 3 lof petal in last.
Percentage of petral left.

(77) A tin contains 2020 l of petrol. Due to leaberage 33 lof petal in last.\newlinePercentage of petral left.

Full solution

Q. (77) A tin contains 2020 l of petrol. Due to leaberage 33 lof petal in last.\newlinePercentage of petral left.
  1. Calculate petrol left: Calculate the amount of petrol left after leakage.\newlineOriginal amount = 2020 liters, Leakage = 33 liters.\newlinePetrol left = 2020 liters - 33 liters = 1717 liters.
  2. Calculate percentage of petrol: Calculate the percentage of petrol left.\newlinePercentage = (Petrol leftOriginal amount)×100(\frac{\text{Petrol left}}{\text{Original amount}}) \times 100\newlinePercentage = (1720)×100(\frac{17}{20}) \times 100 = 8585\%.

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