Question

Mental Ability Question-

If 9*7= 32, 11*5= 96 then 17*9= ?

(a) 160 (b) 175
(c)208 (d) 280

Answer 1

Option (C) - 208.


(9^2 - 7^2) = 81 - 49 = 32.

(11^2 - 5^2) = 121 - 25 = 96.

(17^2 - 9^2) = 289-81 = 208.

Answer 2

answer c.

n^2-n^2.

289-81=208