8 + 3 =11 1+3 = 4
7 + 3 = 10 3 + 3 = 6 ? 5
Except option '(a)' , in all options first number divide by second number.
Except (d), in all other groups the second number is the cube of the first number.
Except (d), in all other groups the second number is the square of the first number.
Except '80-9' , in all options first number is square of second number.
Except '4-32' , in all options second number having cube of first number.
Except 8-15, in all the options, both of the numbers are the square of any natural number.
Except option (d) difference of all other numbers are divisible by 2.
Only 'option (d) second number is twice of first number.
5-2=3, 19-16 =3,27 -23=4, 31-28=3.
In all others, middle number is the sum of other two numbers.
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