Question

If 4 men or 6 women can do a piece of work in 12 days working 7 hours a day; how many days will it take to complete a work twice as large with 10 men and 3 women working together 8 hours a day ? 

(a) 6 days 

(b) 7 days 

(c) 8 days 

(d) 10 days.

Answer 1

Correct option (b) 7 days

Explanation:

According to question, 

4 men = 6 women 

2 men = 3 women 10 men + 3 women = 10 men + 2 men

10 men + 3 women = 12 men ………….(i)