During a storm, the rates of rainfall observed at a frequency of 15 mi – McqOptions

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1.	During a storm, the rates of rainfall observed at a frequency of 15 min for one hour are 12.5, 17.5, 22.5 abd 7.5 cm/h. If the phi-index is 7.5 cm/h, then the total run-off will be
A.	22.5
B.	15
C.	30
D.	7.5
Answer» E.

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