2009 · Q52
How many litres of water flow out of a pipe having an area of cross-section of 5 cm 2 in one minute. If the speed of water in the pipe is 30 cm/s?
Elementary MathematicsAlgebra
- A90 L
- B15 L
- C9 L
- D5 L
Explanation
5·30·60 cm³ = 9000 cm³ = 9 L.