If the sum of numbers is 33 and their difference is 15, the smaller number is ?

A. 9

B. 12

C. 15

D. 18

Answer: Option A

Solution(By Examveda Team)

Let the numbers be x and y
Then,
$$x + y = 33.....(i)$$
And,
$$x - y = 15.....(ii)$$
Solving (i) and (ii), we get :
x = 24 , y = 9
∴ Smaller number = 9