Question

Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.

Answer 1

let 1st number be x and 2nd number be y:
by given condition:
x+y=95                                 ----- (1)
and by the second condition:
y-x = 15                                ------(2)
adding equation(1) & (2) :
(x+y)+(y-x)= 95+15
-> 2y = 110
-> y=55 
put value of y in condition (1)
x+55=95
x=40
.... and Done ! 

Answer 2

let two numbers be=x, x+15
x+x+15=95
2x+15=95
2x=95-15
2x=80
x=40
1st number = 40
2nd number = 40+15 = 55