Multiple Choice Questions on A boat crosses a pole situated on the bank of the river in 20 seconds in the upstream direction If t........... for CDS Exam Preparation

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Multiple Choice Questions

A boat crosses a pole situated on the bank of the river in 20 seconds in the upstream direction If t...........

Quantitative Aptitude (CDS) Boats and Streams
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    A boat crosses a pole situated on the bank of the river in 20 seconds in the upstream direction. If the length of the boat is 10 metres and stream velocity is 3 m/ sec. Find the velocity of the boat? 

    7/2 m/ sec

    Correct Answer

    3 m/sec

    Incorrect Answer

    5 m/ sec

    Incorrect Answer

    14/3 m/sec

    Incorrect Answer
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    Explanation:

    Length=10 metre
    Velocity = v m/sec
    Stream= 3 m/ sec
    Upstream velocity=v-3 m/sec
    Boat take 20 sec
    20=10/v-3
    20v-60=10
    V=7/2 m/sec

    By: bhavesh kumar singh
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