In How Many Days Ram will Do the Work? If

Raj and Ram working together do a piece of work in 20 days. Raj alone can do it in 40 days. Ram alone will do the work is

  1. 20 days
  2.   40 days
  3.  50 days
  4.  60 days
Manish Listener Asked on 9th July 2015 in Maths.
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  • 1 Answer(s)

    Answer: (2) 40 days
    Explanation:-
    Raj and Ram working together do a piece of work = 20 days.
    Raj and Ram can work together in a day = 1/20
    Raj alone can do it = 40 days.
    Then, Raj can work in a day = 1/40
    Then, Ram can do work in a day = 1/20 – 1/40
    =(6 – 3)/120  = 3/120
    = 1/40
    Thus, Ram can do work complete = 40 days.

    Anurag Mishra Professor Answered on 10th July 2015.
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