Question

12 men or 15 women can do a piece of work in 21 days. Find the number of days required to complete the same work by 6en and 10 women​

Answer 1

Answer:

Step-by-step explanation:

If 12 men can do work in 21 days then 1 man can do the work in 21×12 days.

So 6 men can do the work in 21*12/6

= 42 days

If 15 women can do work in 21 days, then 1 woman can do it in 21×15 days.

So 10 women can do it in 21×15/10

= 63 days and 12 hours = 63/2 days.

They both together can do in

= (1/42) + (2/63)

= 7/126

= 126/7 days

= 19 days

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