Correct option is D
Given:
In the given city, there are four men for every three women and five children for every three men.
Solution:
For 3 women there are 4 men
For 1 woman there are 4/3 men
Now, for 531 women there are = 531×4/3
⇒ 177 × 4
⇒ 708
For 3 men there are 5 children
For 1 man there are 5/3 children
The number of children for 708 men
⇒ 708×5/3
⇒ 236 × 5
⇒ 1180
1180 children are there in the city if it has 531 women.