Question

Sum of two numbers is 40.If one of them is 10 more then the other,find the numbers

Answer 1

let one number be x
other number = 10+x

according to question ,

=> x+10+x = 40
=> 2x = 40-10 => 30

=> x = 30/2 = 15


other number = x+10 => 15+10 => 25



hope this helps

Answer 2

let x and y be two numbers required
x+y=40andx=y+10
by substitution of x,value in x+y=40 we get
y+10+y=40
2y=30
y =15