Question

2 women and 10 boys together take 8 days to complete peace of work. how many days will 10 boys alone take to complete the peace of work if 8 women alone can complete the peace of work in 6 days?

Answer 1

8w alone can complete the piece of work in 6 days.

Manpower and days are indirect (inverse)proportion.

And no.of days 2 w can complete is

= 8x6/2 = 24 days

2w can complete the work in one day =

1/24.

2w + 10b can complete the work in one day = 1/8.

1/24 + 10b = 1/8

10b can complete the work in one day =

1/8 - 1/24 = 2/24 = 1/12

10 boys can complete the work in 12 days.