Exams › SSC CGL (Prelims) › General
Four number-pairs are given below. Three of them follow the same pattern, but one does not. Identify the odd pair out.
- 19 : 68
- 23 : 84
- 13 : 90
- 17 : 60
Correct answer: 13 : 90
Solution
For 19:68 - 19x4=76, 76-8=68 (correct). For 23:84 - 23x4=92, 92-8=84 (correct). For 17:60 - 17x4=68, 68-8=60 (correct). For 13:90 - 13x4=52, 52-8=44 not 90. So 13:90 is the odd pair.
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