Four number-pairs have been given, out of which three are alike in som

1.	Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.1. 12 : 1202. 13 : 1433. 18 : 2884. 11 : 111
Answer» Correct Answer - Option 4 : 11 : 111 The logic is: 1. 12 : 120 → 12 × (12 - 2) = 12 × 10 = 120 2. 13 : 143 → 13 × (13 - 2) = 13 × 11 = 143 3. 18 : 288 → 18 × (18 - 2) = 18 × 16 = 288 4. 11 : 111 → 11 × (11 - 2) = 11 × 9 = 99 ≠ 111 Hence, ‘11 : 111’ is the odd one out.

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.1. 12 : 1202. 13 : 1433. 18 : 2884. 11 : 111

Answer» Correct Answer - Option 4 : 11 : 111

The logic is:

1. 12 : 120 → 12 × (12 - 2) = 12 × 10 = 120

2. 13 : 143 → 13 × (13 - 2) = 13 × 11 = 143

3. 18 : 288 → 18 × (18 - 2) = 18 × 16 = 288

4. 11 : 111 → 11 × (11 - 2) = 11 × 9 = 99 ≠ 111

Hence, ‘11 : 111’ is the odd one out.