In How Many Days 6 Men and 12 Women Can Do the Same Piece of Work? If

If 4 men or 8 women can do a piece of work in 15 days, in how many days can 6 men and 12 women do the same piece of work?

  1. 45 days
  2. 5 days
  3. 30 days
  4. 20 days
Monis Rasool Professor Asked on 29th August 2015 in Maths.
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1 Answer(s)

Answer: (2) 5 days

Explanation:-
4 men = 8 women
Then, 1 man = 2 women
4 man can do a work = 15 days

Formula-
M1D1 = M2D2
Where, M = number of men  & D = Number of days

Then, M1 = 4 , D1 = 15 , M2 = (6 + 6) = 12 , D2 =?

Then, 4 x 15 = 12 X ?
? = 60 /12
?  = 5 days
Then, 5 days can 6 men and 12 women do the same piece of work.

Hence, the answer is (2) 5 days.

Anurag Mishra Professor Answered on 1st September 2015.
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