Question

67/ 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 wa-
ter level in the tank rises by
4.5 m ?
(1) 10 km/hr
(2) 12 km/hr
(3) 8 km/hr
(4) None of these​

Answer 1

Answer:

your answer is. option 3). 8km/hr