Q88
The sum of two numbers is 18. The greatest product of these two number can be:
A.
17
B.
81
AnswerC.
80
D.
Can't determined
Answer: Option B
Solution
Answer: Option B
Solution:
a + b = 18So, maximum of (a × b) will be only when a = b
Thus, a = b = 9
Maximum of (a × b) = 9 × 9 = 81.