Discussion Forum



1)

What should be the maximum value of B in the following equation ?

5A9 - 7B2 + 9C6 = 823


A) 5

B) 6

C) 7

D) 9

Answer:

Option C

Explanation:

We may represent the given sum, as shown,as shown.

1 +A + C- B= 12<=>A + C - B= 11.

Giving maximum values tu A and C,

i.e., A = 9 and C = 9, we get B = 7.