Mathematics for IGCSE & O level - Rates (Section 2 - No. 27)
Water from a tap flows at 25 litres/minute. How long will it take for this tap to fill a bath that holds 500 litres?
10 minutes
20 minutes
25 minutes
30 minutes
Giải thích
Time = Total Volume / Rate of Flow. Time = 500 litres / 25 litres/minute = 20 minutes.