Question

If A+B=76
a-B =38
then what will b the value of
A/B=?

Answer 1

a+b=76.............(1)
a-b=38..............(2)

(1)+(2)
2a=114
a=57
substitute a value in (1)
57+b=76
b=76-57
b=19
we get a=57 and b=19
therefore 
a/b=57/19=3

Answer 2

given

              A+B=76

           + A-B=38

              THEN 2A =114

                          A=114/2

                               57

             SUBSTITUTE A VALUE IN A+B=76

                WE  GET 57+B=76

                                   B=19

A/B=57/19=3