Question

2 men and 3 women can do a piece of work in 10 days while 3 men and 2 women can do the same work in 8 days. Then, 2 men and 1 women can do the same work in:

(a) 12 days

(b) 25/2 days

(c) 13 days

(d) 27/2 days

Answer 1

Correct option (b) 25/2 days

Explanation:

 Equating the work

(2M + 3W) × 10 = (3M + 2W) × 8

After solving

We get, 2M =7W

M/W = 7/2

Total work =(2 × 7 + 3 × 2) × 10

= 20 × 10 = 200 units

Eff. of 2M +1W = 2 × 7 + 2 = 16