From the Survey of India map, the distance of the critical point is 20 km and difference in elevation
is 193 m. The over land flow time, is
(A) 2 hours
(B) 3 hours
(C) 2 hours and 30 minutes
(D) 4 hours
is 193 m. The over land flow time, is
(A) 2 hours
(B) 3 hours
(C) 2 hours and 30 minutes
(D) 4 hours