How much time they will take work together?

Ram completes a task in 7 hours and shyam also completes the same task in 5 hours. How much time they will take work together?

  1. 2 hrs. 25 min.
  2. 1 hr. 35 min
  3. 2 hrs. 55 min
  4. 2 hrs. 35
Anurag Mishra Professor Asked on 14th December 2015 in Maths.
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  • 1 Answer(s)

    Answer: (3) 2 hours 55 minutes

    Explanation:-
    Ram completes a task = 7 hours
    Shyam also completes the same task = 5 hours

    They will take time work together  = 5 x 7/(5 + 7)
    = 35/12
    = 2 hours 11 x 60/12
    = 2 hours 55 minutes

    Then, they will take 2 hours 55 minutes to complete work together.

    Hence, the answer is (4) 2 hours 55 minutes.

    Anurag Mishra Professor Answered on 15th December 2015.
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