Direction: In each of the following questions, five/four words/number are given, out of which four/three are same in one way or the other and the fifth/fourth one is different from these four/three. Select the odd one.
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NA
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- 143
- 257
- 195
- 15
Correct Option: D
143 → 122 - 1,257 → 162 + 1, 195 → 142 - 1, 15 → 42 - 1,
Hence, '257' is odd one.
