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Banking Sample Paper SBI Junior Associates (Main) Sample Test Paper-1

  • question_answer
    A man can row three-quarters of a kilometre against the stream in \[\frac{45}{4}\] minutes and returns in \[\frac{15}{2}\] minutes. The speed of the man in still water is

    A)  2 km/hr           

    B)  3 km/hr           

    C)  4 km/hr           

    D)  5 km/hr           

    E)  6 km/hr(c)

    Correct Answer: D

    Solution :

    Upstream speed\[=\frac{3}{4}\div \left( \frac{45}{4\times 60} \right)\]             \[=\frac{3}{4}\times \frac{4\times 60}{45}=4\,\,km/hr\] Downstream speed\[=\frac{3}{4}\div \left( \frac{15}{2\times 60} \right)\]             \[=\frac{3}{4}\times \frac{2\times 60}{15}=6\,\,km/hr\] Speed of man in still water             \[=\frac{4+6}{2}=5\,\,km/hr\]


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