In the following question, four number pairs are given. The number on left side of (-) is related to the number on the right side of (-) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.
- A11-12
- B23-24
- C17-18
- D19-21
Solution & Step-by-step Explanation
Let's check the difference between the numbers in each pair:
Option A: 12−11=1
Option B: 24−23=1
Option C: 18−17=1
Option D: 21−19=2
All pairs have a consecutive difference of 1, except for option D which has a difference of 2. Thus, 19-21 is the odd one out.
Option A: 12−11=1
Option B: 24−23=1
Option C: 18−17=1
Option D: 21−19=2
All pairs have a consecutive difference of 1, except for option D which has a difference of 2. Thus, 19-21 is the odd one out.