Question

What are those two numbers whose sumis 58 and difference is 28

Answer 1

the two numbers be a and yb

according to the question,

a+b=58............................(1)

a-b=28..............................(2)

subtracting (1) and (2)

   a+b=58

(-)a-b=28

we get 2b=30

   b=15

substitute b in (2)

          we get a-15=28

                    ⇒a=28+15

                    ⇒a=43

therefore, the two numbers are 43 and 15