Question

Select the option in which the numbers share the same relationship as that shared by the given number-pair.

8 : 49

1. 9 : 87
2. 12 : 121
3. 13 : 170
4. 15 : 211

Answer 1

Correct Answer - Option 2 : 12 : 121

The pattern followed is,

8: 49 → 8 – 1 = 7, 7² = 49

So,

8: 49

Similarly,

Option 1 → 9: 87 → 9 – 1 = 8, 8² = 64, not 87

Option 2 → 12: 121 → 12 – 1 = 11, 11² = 121

Option 3 → 13: 170 → 13 – 1 = 12, 12² = 144, not 170

Option 4 → 15: 210 → 15 – 1 = 14, 14² = 196, not 211

’12: 121’ share the same relationship as that shared by the given number-pair.

Hence, “12: 121” is the correct answer.