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Question

196 : 169 : 81 : ?
(a) 64
(b) 72
(c) 100
(d) None

Is a option  correct here or do we need to look at the the square root of them for some other relation 14,13,9 .If none was not there i would have selected a only.

Comments

I think a is the only answer.

Answer 1

Answer -a(64).

Question is based on Ratio and proporation

Comments

So we are checking ratio of differences ,like 14-13 is 1 then 9-8 is also one?

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ya, i think so...

Answer 2

14 square is 196

13 square is 169

9 square is  81

8 square is 64