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;
1) 16 : 8,
4x4 : 4+3
16: 7 not 8
2) 4 : 5,
2x2 : 2+3
4 : 5
3) 9 : 6,
3x3 : 3+3
9 : 6
4) 36 : 9,
6x6 : 6+3
36 : 9
Thus, 16 : 8 is the odd one.