In how many days B can complete whole work? If

A and B can complete a piece of work in 20 days. A works at it alone for 10 days and then the remaining work is and then the remaining work is completed by B alone in 25 days. B can complete the whole work alone in

  1. 30 days
  2. 35 days
  3. 25 days
  4. None of the above
Monis Rasool Professor Asked on 14th November 2015 in Maths.
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1 Answer(s)

Answer: (4) None of the above 

Anurag Mishra Professor Answered on 1st January 2016.
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