General Studies · Odd One Out
Three of the following four options are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
- 116 - 45 - 21
- 220 - 15 - 51
- 322 - 67 - 22✓
- 426 - 95 - 21
Correct answer
22 - 67 - 22
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