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Select the number from among the given options that can replace the question mark (?) in the following series. 121, 144, 169, 196, ?
Question

Select the number from among the given options that can replace the question mark (?) in the following series.
121, 144, 169, 196, ?

A.

215

B.

115

C.

225

D.

125

Correct option is C

Information Given:
Series: 121, 144, 169, 196, ?
Logic: Numbers are squares of consecutive integers (n² pattern).
Step-by-step:
121 = 11²
144 = 12²
169 = 13²
196 = 14²
Next → 15² = 225
Short Trick:
Recognize perfect squares increasing by +1 in base number.
Final Answer:
225
Final Correct Option:
(C)

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