Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
Options:
A .  226
B .  290
C .  360
D .  170
E .  122
Answer: Option C
After a close look you will get the exact 360 each number is one more than square of a natural number, i.e., 226 = 152+ 1 ; 290 = 172+ 1 ; 170 = 132+ 1 ; 122 = 2+ 1.
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