5 men start working to complete a work in 15 days. After 5 days, 10 women are accompanied by them to complete the work in next 5 days. If the work is to be done by women only, when could the work be over, if 10 women have started it?

Explanation:

According to the question,

5 men’s 1 day’s work = 1\15 ……(i)

5 men’s 5 day’s work = 1\15×5=1\3

Remaining work = 1−1\3=2\3

5 men + 10 women can do 2/3 of the work in 5 days.

5 men + 10 women can do the whole of the work in 15/2 days.

(5 men + 10 women’s) 1 day’s work

= 2\15 …..(ii)

10 women’s 1 day’s work

= 2\ 15- 5 men’s 1 day’s work

= 2\15−1\15=1\15

10 women can finish the work in 15 days.