In How Many Days Tanya do the Same Piece of Work? If

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

  1. 16
  2. 15
  3. Cannot be determined
  4. None of the above
Monis Rasool Professor Asked on 13th June 2015 in Maths.
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  • 1 Answer(s)

    Answer: (1) 16 days
    Explanation:-

    Sakshi  can do a piece of work = 20 days
    Tanya is 25% more efficiency than Sakshi.
    Then, the ratio of times taken by Skshi and Tanya = 125: 100 = 5: 4
    Let be the Tanya takes X days to do the work.
    Then, 5: 4 = 20/X
    X = 4 X 20/5
    X = 16 days.

    Hence, the answer is (1) 16 days.

    Anurag Mishra Professor Answered on 13th June 2015.
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