4. In one fortnight of a given month, there was a rainfall of 10 cm in a river valley. If the area of the valley is 7280 km², show that the total rainfall was approximately equivalent to
the addition to the normal water of three rivers each 1072 km long, 75 m wide and 3 m
deep .
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1
Answer:
Given:
Area of the valley =7280 km
2
Volume of rainfall in the area = 7280×10×0.00001=0.728 km
3
Volume of water in 3 rivers =3×1×b×h=3×1072×75×0.001×3×0.001=0.723 km
3
(Converted m = km)
So, the 2 valleys are nearly similar.
Step-by-step explanation:
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