How Long will Shyam Take to do the Job by himself? If

Ram and shyam together can finish a job in 8 days. Ram can do the same job on his own in 12 days How long will Shyam take to do the job by himself?

  1. 16 days
  2. 20 days
  3. 24 days
  4. 30 days
Abdul Salam Newbie Asked on 14th August 2015 in Maths.
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1 Answer(s)

Answer: (3) 24 days

Explanation:-

Ram and Shyam together can finish a job = 8 days
Therefore, Ram and Shyam can  a job in a day = 1/8

Ram can do the same job = 12 days
Therefore, Ram can do the same job in a day = 1/12

Then, Shyam can do the job in a day = 1/8 – 1/12
= (3 – 2)/24
= 1/24

Therefore, Shyam can do complete the same job = 24 days.

Hence, the answer is (3) 24 days.

Anurag Mishra Professor Answered on 3rd September 2015.
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