Question

8 children and 12 men complete a certain piece of work in 9 days. if each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work? 1) 8 days 2) 10 days 3) 11 days 4) 12 days

Answer 1

Answer is 12!
2 children = 1 men ,so 12+4= 16 men can finish the work in 9 days.
For 12 men , ((16×9)÷12)=12 days

Answer 2

Answer:

Step-by-step explanation:

Given: 1 Man=2 Children

Means (8 Children+ 12 Men)=4+12=16 Men.

They do work in 9 days.

=>16 Men ~ 9 days

So,12 Men ~ 9×16/12 =12 days.Ans.

{ It can be thought in this way as well—

Since Men×days=Constant

=>16×9=12×x =>x=12 days.Ans.