Question

Twenty times the square of a non zero number is equal to 20 times the number.

What is the number?

Answer 1

The answer is 1.
1² = 1
20×1² = 20×1

Answer 2

Answer: The only possible number is +1

Explanation:

Let the number be x then according to the question

`20* x^(2)=20* x`

=>
`20x(x-1)=0`

=>
`x=0,1`

But x=0 is not possible therefore

=>
`x=+1`

Thus the only possible number is +1