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1. If the sum of two numbers is 33 and their difference is 15, the smaller number is :
- A. 9
- B. 9
- C. 9
- D. 9
Answer: Option A
Explanation:
Let, the numbers are x and y
According to question,
x + y = 33.......(1)
x - y = 15.......... (2)
(1) + (2) = 2x = x = 24.
again , x + y = 33 (1)
x - y = 15...... (2)
(1) - (2) = 2y = 18
y = 9
So, smallest number is 9
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