Question

if a work is done by 12 man and 15 women in 21 days then in how many day the work will done by 6 man and 10 women?​

Answer 1

The work can be finished by 12 men in 21 days. The work can be finished by 15 women in 21 days. Therefore 18 days are required to finish the work by 6 men and 10 women, when work together.        so 18 days