Water is flowing at the rate of 15 km/h through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide. In what time will the level of water in pond rise by 21 cm?
Answer 2 hours
Length of cuboidal pond = 50m
Breadth = 44 m
Speed of water = 15 km per hour = 15000 m