| 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 | 326 : 107 | incorrect |
| Option | 239 : 78 | incorrect |
| Option | 308 : 101 | incorrect |
| Option | 197 : 66 | correct |
| Solution | 326 : 107 = 107 × 3 + 5 : 107 239 : 78 = 78 × 3 + 5 : 78 308 : 101 = 101 × 3 + 5 : 101 197 : 66 = 66 × 3 – 1 : 66 Hence, option D is different. | |
