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.

| 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 | 113 | incorrect |
| Option | 117 | correct |
| Option | 103 | incorrect |
| Option | 107 | incorrect |
| Solution | 113, 103 and 107 ⇒ Prime no. | |