Four number pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
Answer & explanation
Correct answer: option 2
THE LOGIC;
1) 25 : 650,
25 x 25 + 25 = 650
2) 18 : 306,
18 x 18 - 18 = 306
3) 23 : 552,
23 x 23 + 23 = 552
4) 13 : 182,
13 x 13 + 13 = 182
Thus, 18 : 306 is the odd one.