| 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 | NIZAM | incorrect |
| Option | STEIN | correct |
| Option | MAINS | incorrect |
| Option | SAINT | incorrect |
| Solution | The sum of alphabets numbers is prime in option B. | |
