Discussion of Question with ID = 007 under Problems-on-Numbers

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Question

The sum of two numbers is 24. Their product is 143. One of the two numbers is?

A

13.

B

14.

C

12.

D

15.

Soln.
Ans: a

Let the numbers be $a$ and $24 - a$. We are given their product as a × (24 - a) = 143, which is a quadratic expression that can be simplified to $(a - 13) × (11 - a) = 0$. So the numbers could be 13 and 11.


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