Symbiosis National Aptitude Test SNAP 2015 Paper

Question : 63 of 150

Marks: +1, -0

\table 1,2,3;11,7,5;120,45,?

Solution:

In the first column,

11^2 – 1^2

= 121 – 1 = 120.
In the second column,

7^2 – 2^2

= 49 – 4 = 45.
∴ In the third column, missing number =

5^2 – 3^2

= 25 – 9 = 16.

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