General Studies · Classification
The second number in the given number-pairs is obtained by performing a certain mathematical operation on the first number. The same operation is followed in all the number-pairs except one. Find that odd number-pair.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112 : 7
- 215 : 9✓
- 36 : 4
- 420 : 11
Correct answer
15 : 9
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