In How many Days can Complete the Same Work? If

If 4 men or 7 boys can do a work in 29 days than 12 men and 8 boys can complete the same work in how many days?

  1. 12 days
  2. 6 days
  3. 7 days
  4. 8 days
Monis Rasool Professor Asked on 25th May 2015 in Maths.
Add Comment
  • 1 Answer(s)

    Answer: (c) 7 days.
    Explanation:-

    Work done by 4 men in a day = 1/29
    Work done by 1 man in a day = 1/29 x 4

    Work done by 7 boys in a day = 1/29
    Work done by 1 boy in a day = 1/29 x 7

    Work done by 12 men and 8 boys = 12/29 x 4 + 8/29 x 7
    = 3/29 + 8/203
    = 841/5887 = 1/7
    Hence, 12 men and 8 boys can complete the same work in 7 days.

    Anurag Mishra Professor Answered on 25th May 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.