Chain Rule - General Aptitude

Q1:

In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with remaining meal?

A 20

B 30

C 40

D 50

ANS:B - 30

There is a meal for 200 children. 150 children have taken the meal. Remaining meal is to be catered to 50 children. Now, 200 children  120 men.

50 children  120 x 50 = 30 men.
200