| Question | Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number- pair that is different. | |
| Type | multiple_choice | |
| Option | 19, 39 | incorrect |
| Option | 25, 53 | correct |
| Option | 68, 137 | incorrect |
| Option | 37, 75 | incorrect |
| Solution | Except – option B all the options follow ×2+1 Pattern 19×2+1=39 25×2+3=53 68×2+1=137 37×2+1=75 | |
