Given: 9 women can complete a piece of work in 360 days 18 children can complete the same piece of work in 72 days 12 men can complete it in 162 days Concept Used: Work done by a person in 1 day =
1
n
Where n = Number of days to complete the whole work by that person Calculation: 1 woman's 1 day's work =
1
360
×
1
9
=
1
3240
10 women's 1 day's work =
1
324
1 child's 1 day's work =
1
72
×
1
18
=
1
1296
4 children's 1 day's work =1×
4
1296
=
1
324
12 men's 1 day's work =
1
162
Now, (4 children +12 men +10 women)'s 1 day's work =