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Water flows into a tank which is 200 m l...

Water flows into a tank which is 200 m long and 15 m wide, through a pipe of cross-section `0.3 m xx 0.2 m` at 20 km/hour. Then the time (in hours) for the water level in the tank to reach 8 m is

A

2

B

`1(1)/(2)`

C

3

D

`2(1)/(2)`

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The correct Answer is:
A
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