please I need your help. I can't answer this question.

Question

What is the of this in ruby?

What is the value of z?
a = 13
b = a - 8
z = a%b

Answer 1

a = 13
b = 5

z is the remainder of 13/5
z = 3;
% is called the modulo operator.
It returns the remainder of a division.

Answer 2

its simple none other than.
you have to study about modulus operator that returns remainder after devision. that's why 13%5 results 3

Answer 3

a = 13
b = 5
a%b=3

Answer 4

Thanks you all