Question

Example: 8 men can do a work in 12 days while 20
women can do it in 10 days. In how many days can 12
men and 15 women complete the same work.​

Answer 1

Answer:

8 men 1 day work = 1/12

1 man 1 day work = 1/96

same as

20 women 1 day work = 1/10

1 woman 1 day work = 1/200

:- 12 men + 15 women 1 day work = (12/96) + (15/200)

= (1/8+3/40)

= 8/40

12 men + 15 women 1 day work ==> 1/5

therefore 12 men and 15 men women can complete the same work in 5 days