Question

two third of a number is20 ls less than the origional number. find the number

Answer 1

let the number be x
2/3 of the number =2/3*x
=20
the number =3/2*20=30

Answer 2

Let the number be x

Therefore,2/3x =20-x

2/3x+x=20

Find the lcm

So, 2+3/x=20

5/x=20

X=20/5

X=4