Which of the following numbers will replace the question marks (?) in the given series?
324, 289, 256, 225, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 196.
324, 289, 256, 225, ?
324 = (18)2
289 = (17)2
256 = (16)2
225 = (15)2
196 = (14)2