2013 · Q74
A swimming pool 70 m long, 44 m wide and 3 m deep is filled by water flowing from a pipe at the rate of 30,800 cm³ per second. The time taken to fill the swimming pool is
Elementary MathematicsMensuration
- A7 1/2 hours
- B80 hours
- C250/3 hours
- DNone of the above
Explanation
Volume=9240 m³; rate=0.0308 m³/s → 300000 s = 250/3 h. Answer C.