Multiple Choice Questions on Ram and Ravi can do a job together in 8 days Ram is 11 8 times as efficient as Ravi The same job can........... for SSC CHSL Preparation

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Multiple Choice Questions

Ram and Ravi can do a job together in 8 days Ram is 11 8 times as efficient as Ravi The same job can...........

Quantitative Aptitude (CHSL) Time and work
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    Ram and Ravi can do a job together in 8 days. Ram is 11/8 times as efficient as Ravi. The same job can be done by Ravi alone in

    21

    Incorrect Answer

    25

    Incorrect Answer

    19

    Correct Answer

    16

    Incorrect Answer
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    Explanation:

    Solution: 
    Ram :Ravi 11: 8(Efficiency)
    (11+8) = 19          8(both completed in 8days)
    Then Ravi 8 = (Efficiency and days are reciprocal)19*8/8=19days.

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