Question

the sum of two number is 137 and their difference is 43 find the number

Answer 1

HI !

let the no:s be "a" and "b"

given,

a + b = 137               ------> (1)

a - b = 43                 ----------> (2)

Adding (1) and (2) , we get :-

2a = 180

a = 90

a + b = 137

b = 137 - 90

   = 47

The no:s are 90 and 47

Answer 2

Let numbers are x and y,



Their sum = 137
x + y = 137
x = 137 - y


Their difference = 43
x - y = 43
137 - y - y = 43
137 - 43 = 2y
94 = 2y
47 = y



Putting the value of y in ( x - y )

x - 47 = 43
x = 43 + 47
x = 90





Hence, numbers are 90 and 47.




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