Answer with Explanation:
1 woman's 1 day's work = 1/70
1 child's 1 day's work = 1/140
(5 women + 10 children)'s day's work = (5/70 + 10/140 ) = (1/14 +1/14)= 1/7
5 women and 10 children will complete the work in 7 days.
1 woman's 1 day's work = 1/70
1 child's 1 day's work = 1/140
(5 women + 10 children)'s day's work = (5/70 + 10/140 ) = (1/14 +1/14)= 1/7
5 women and 10 children will complete the work in 7 days.