The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair.
Answer & explanation
Correct answer: option 1
The logic followed here Is :
option 1 64 : 6
82 = 64
8 - 3 = 5 but 6 is given
option 2 25 : 2
52 = 25
5 - 3 = 2
option 3 225 : 12
152 = 225
15 - 3 = 12
option 4 169 : 10
132 = 169
13 - 3 = 10