| Question | Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter- cluster that is different. | |
| Type | multiple_choice | |
| Option | OPR – TPQ | correct |
| Option | PHJ – PXV | incorrect |
| Option | RTV – NLJ | incorrect |
| Option | BFX – DZH | incorrect |
| Solution | Pair of opposite letter+5, except (a). | |
