Question

2 by 3 of a number is less thanthe original no. by,20.find the number

Answer 1

Let the number be X ,
2/3 of the number = 2X/3,

According to data,

X - 2X/3 = 20, because it is less than the original by 20,

now simply the equation , you get,
(3X-2X)/3 = 20

Multiply 3 on both sides,

(3X-2X) = 60,

Now X = 60,

The required number !

Answer 2

x - 2x/3 =20
x/3 = 20.
x= 60