If it rains between 2 P.M. and 3 P.M. and the entire basin area just s – McqOptions

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1.	If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be_____________________?
A.	15 minutes
B.	20 minutes
C.	30 minutes
D.	60 minutes
Answer» E.

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