A watershed contains two subareas with the following hydrologic characteristics: a. Subarea 1: A = 80 acres,

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A watershed contains two subareas with the following hydrologic characteristics:

a. Subarea 1: A = 80 acres, C = 0.50, Tc = 30 min

b. Subarea 2: A = 100 acres, C = 0.35, Tc = 40 min The 25-year rainfall intensities of the 30- and 40-minute duration storms are 3.6 and 3.0 in./h, respectively. Calculate the peak rate of runoff from each subarea and the composite discharge from the watershed.

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