Question

a number added to its half gives 72. find the number

Answer 1

let the number be 'x'
and its half be 'x/2'
x+[x/2] = 72
2x+x/2=72
3x/2=72
3x= 72×2
x=72×2/3
x=24×2
x=48
therefore, the number is nothing but 48

Answer 2

Let the number be x.
The equation will be,
x + x/2 = 72
(2x + x)/2 = 72
2x + x       = 72 * 2
3x             = 144
x               = 144/3
x               = 48
Let us verify:
48 + 48/2  = 72
48 + 24     = 72
72             = 72