Geometry and TrigonometryMediumRise in water depth from an added volume
Geometry and Trigonometry practice question
A rectangular tank has a base measuring 50 centimetres by 20 centimetres and contains water to a depth of 30 centimetres. If 6,000 cubic centimetres of water are added, by how many centimetres does the depth rise?
Answer: 6
The base area is 1,000 square centimetres, so 6,000 cubic centimetres raise the depth by 6,000/1,000 = 6.
Common wrong answers
- If you answered 12
- 12 divides by 500.
- If you answered 36
- 36 is the new depth, not the rise.
- If you answered 0.6
- 0.6 divides by 10,000.
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