Multiple Choice Questions on A boat goes 4 km against the current of the stream in 1 hour and goes 1 km along the current in 10 m........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A boat goes 4 km against the current of the stream in 1 hour and goes 1 km along the current in 10 m...........

Quantitative Aptitude ( CCS) Boats and Streams
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    A boat goes 4 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 15 km in stationary water?

    2 hour 15 min

    Incorrect Answer

    2 hour

    Incorrect Answer

    3hr

    Correct Answer

    3hr 30 min

    Incorrect Answer
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    Explanation:

    Rate downstream = 1/10 * 60 = 6kmph
    Rate upstream = 4 km/hr.
    Speed in still water = ½ * 10 = 5 kmph
    Required time = 15/5 = 3 hr

    By: Pranav Gupta
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