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A swimming pool is 200 m by 50 m and has an average depth of 2 m. By the end of a summer day, the water level drops by 2 cm. How many cubic meters of water is lost on that day?

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200m3

150m3

165m3

225m3

answer is A.

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Detailed Solution

Given, L is length =200m,
B is breadth = 50m.
We know, Area of cuboid = length

\times

breadth
Area of pool =

200 m \times 50 m

⇒ 1000 m 2

Because 1m = 100cm so, level drop = 2cm

⇒ 2100 m

Water Lost = Level drop

×

Area of pool.

Water Lost = 2100 × 10000 Water Lost = 200 m 3

Therefore, the correct option is 1.

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