AlgebraEasyLitres after two minutes of filling
Algebra practice question
A tank already holds 3 litres of water and is filled at a steady 2 litres per minute. How many litres will it hold after 2 minutes?
Answer: 7
3 + 2(2) = 7.
Common wrong answers
- If you answered 4
- 4 is the water added, without the 3 already there.
- If you answered 5
- 5 adds only one minute of filling.
- If you answered 10
- 10 multiplies 5 by 2.
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