Problem-Solving and Data AnalysisEasy–MediumTank capacity from a percentage full
Problem-Solving and Data Analysis practice question
A tank is 35% full and holds 140 litres of water. What is the capacity of the tank, in litres?
Answer: 400
0.35 × capacity = 140, so capacity = 140/0.35 = 400.
Common wrong answers
- If you answered 49
- 49 multiplies 140 by 0.35 instead of dividing.
- If you answered 175
- 175 adds 35 to 140.
- If you answered 260
- 260 treats 35% as 140 litres short of full.
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