Question

The sum of a number and its half is thirty . Find the number

Answer 1

Answer:

Let the number be X

X + X/2 = 30

LCM = 2

2X/2 + X/2 = 30

3X/2 = 30

3X = 30 * 2

X = 60/3

X = 20

Numbers are 20 and 10