# What Should be Water Speed? If

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 6 hour and 18 minutes water level in the tank rises by 4.5 m?

- 10 km/hr
- 12 km/hr
- 8 km/hr
- 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 6 hour and 18 minutes water level in the tank rises by 4.5 m?

- 10 km/hr
- 12 km/hr
- 8 km/hr
- None of these