Series and Odd Man out Practice Test 3

Question : 21 of 40

Marks: +1, -0

8, 12, 15, 20, 24

Solution:

The terms of the series are

(3^2 - 1^2 ), (4^2 - 2^2 ),

(5^2 - 3^2 ), (6^2 - 4^2 ), (7^2 - 5^2 )

.

So, 15 is wrong and must be replaced by

(5^2 - 3^2 ) = 16

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