Water is flowing at the rate of 15 km/hr through a pipe of diameter 28 cm into a rectangular tank which is 44 m long and 28 m wide. Find the time in which the level of water in the tank will rise by 50 cm.
Ramesh rides along the boundary of a rectangular park at the rate of 12 km/hr and completes one full round in 15 minutes. If the length of the park is 4 times its breadth, then what is the area of the park?
Water flows at the rate of 10 m per min. from a cylindrical pipe 5 mm in diameter. How long will it take to fill up a conical vessel whose diameter at the base is 40 cm and depth 24 cm?
A boy started for school which is 12 km away from his home by bicycle at a speed of 8 km/hr but after 15 minutes he remembers that he forgot one of the book at home, so he increases his speed and returns back to home and also reaches his school in time. What is the percentage increase in his speed?
A large volume of water is gushing through a pipe which narrows at the outlet. At which point, A, B, C or D will the water flow fastest?
