A rectangular tank is 225 m by 162 m at the base. With what speed mus…

Question

A rectangular tank is 225 m by 162 m at the base. With what speed must water flow into it through an aperture 60 cm by 45 cm so that the level may be raised 20 cm in 5 hours ?

Accepted Answer

Option C. 5400 m/hr. Answer & Solution Answer: Option C Solution: Volume flown in 5 hours : & = ( 225 × 162 × 20100 ) m^3 & = 7290\, m^3 Volume flown in 1 hour : & = ( 72905 ) m^3 & = 1458\, m^3 ∴ Required speed : & = ( 14580.60 × 0.45 ) m/hr & = 5400\, m/hr