If intensity of rainfall in cm per hour is I, percentage coefficient of run-off is P, area of catchment in 

square kilometres is A, the total run-off Q, is given by 

(A) Q = 1.758 × 102

 × API

(B) Q = 2.758 × 102

 × API

(C) Q = 2.758 × 103

 × API

(D) Q = 2.758 × 103

 × A/PI

1 Answer

Answer :

(C) Q = 2.758 × 103

 × API

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