A tank is 7 metre long and 4 metre wide. At what and speed should water run through a pipe 5 cm broad and 4 cm deep so that in 6 hours an 18cmminutes water level in the tank rise by 4.5 metre? `10\ k m//h r` b. `12\ k m//h r` c. `8\ k m//h r` d. none of these

A tank is 7 m long and 4 m wide . At what speed should water run through a pipe 5 cm broad and 4 cm deep, so that in 6h and 18 min , water level in the tank rises by 4.5 m ?

A rectangular reservoir is 120m long and 75m wide.At what speed per hour must water flow into it through a square pipe of 20cm wide so that the water rises by 2.4m in18 hours.

A cyclist rides 24 km at 16 kmph and further 36 km at 15 kmph. Find his average speed for the journey. 15. 38 k m//h r b. 15. 5 k m//h r c. 16 k m//h r d. none of these

A man's speed with the current is 15 km / hr and the speed of the current is 2.5 km/ hr. The man's speed against the current is: 8. 5\ k m//h r b. \ 9\ k m//h r c. 10\ k m//h r d. 12. k m//h r

A rectangular reservoir is 120m and 75m wide.At what speed per hour must water flow into it through a square pipe of 20cm wide so that the water rises by 2.4m in 18 hours.

The speed of a boat in still water is 10 km /hr. If it can travel 26 km downstream and 14 km upstream in the same time, the speed of the stream is : 2 k m//h r b. 3 k m//h r c. 4 k m//h r d. 2. k m//h r

A train travels at a speed of 30 km/hr for 12 minutes and at a speed of 4 km/hr for the next 8 minutes. The average speed of the train for this journey is 30 k m//h r b. 36 k m//h r c. 37. k m//h r d. 48 k m//h r

A water tank is 13 m long, 14 m wide and 10 m deep. It is filled with water to a level of 5 m, what part of the tank is empty?

A train passes a platform 90 m long in 30 seconds and a man standing on the platform in 15 second. The speed of the train is a. 12. 4 k m//h r b. 14. 6 k m//h r c. 18. 4 k m//h r d. 121. 6 k m//h r

The ratio of the speeds of a car, train and a bus is 5:9:4. The average speed of the car, the bus and the train is 72 km/hr. what is the average speed of the car and the train together? 78 k m//h r b. 82 k m//h r c. 84 k m//h r d. cannot be determined e. none of these