16Hit1600
AlgebraEasy–MediumWater left in a tank

Algebra practice question

A tank holds 300 litres and is drained at 12 litres per minute. How many litres remain after 15 minutes?

Answer: 120

300 − 12(15) = 120.

Common wrong answers

If you answered 25
25 is the time to empty the tank.
If you answered 180
180 is the amount drained.
If you answered 480
480 adds instead of subtracting.

More Algebra questions

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