Question

16 men and 12 women can complete a work in 20 days. 18 women can complete the same work in 40 days. In how many days will 12 men 27 women complete the same work?
A) 16 days
B) 18 days
C) 19 days
D) 21 days

Answer 1

16 men and 12 women can complete a work in 20 days. 18 women can complete the same work in 40 days. In how many days will 12 men 27 women complete the same work?
A) 16 days
B) 18 days
C) 19 days
D) 21 days

SOLUTION



18 women's 1 day work=1/60
1 women's 1 day work=1/18*60
12 women's 1 day work=12/18*60=1/90
16men+12 women 1 day work =1/30
16men 1 day work=1/30-1/90=1/45
12 men 1 day work=12/16*45=1/60
27 women 1 day work=27/12*90=1/40
so 12 men+27 women 1 day work=1/60+1/40=1/24
so they take 24 days to complete the work

Answer 2

b is right option. .....