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The sum of two numbers is 18. The greatest product of these two number can be:

A. 17

B. 81

C. 80

D. Can't determined

Answer: Option B

Solution(By Examveda Team)

a + b = 18
So, maximum of (a × b) will be only when a = b
Thus, a = b = 9
Maximum of (a × b) = 9 × 9 = 81.

This Question Belongs to Arithmetic Ability >> Number System

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