Question
Download Solution PDFFour number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe logic is:
1st number × 7 - 8 = second number
1. 21 ∶ 139 → 21 × 7 - 8 = 147 - 8 = 139
2. 25 : 167 → 25 × 7 - 8 = 175 - 8 = 167
3. 15 : 197 → 15 × 7 - 8 = 105 - 8 = 97 ≠ 197
4. 27 : 181 → 27 × 7 - 8 = 189 - 8 = 181
Except option 3, all options are follow the given logic. thus option 3 is an odd one.
Hence, ‘15 : 197’ is the odd one out.
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