Question

500 persons are taking dip into a cuboidal pond which is 80m long and 50m broad.What is a rise of water level in the pond if average displacement of water by a person is 0.04m3?​

Answer 1

Answer:

Suppose level of water rises by h meters

in the pond.

Then,

Clearly,

Water rises in the pond forms a cuboidal of dimensions

$80m \times 80m \times h \: m.$

$80 \times 50 \times h = volume \: of \: water \: displaced \: by \: 500 \: persons \\ 80 \times 50 \times h = 500 \times 0.04 \\ 4000h = 20 \\ h = \frac{1}{200} \\ h = 0.5cm$

Therefore,

The level of rise of water is 0.5cm.

Hope.

Answer 2

refer to the attachment given above

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