Question

What
1. If you substract 1/2 from a number and multiply the result by 1/2, you get 1/8. What is the number?​

Answer 1

Step-by-step explanation:

Let the number be x

Equation:

½(x-½) = ⅛

x-½ = ¼

x = ¼ + ½ = ¾

Answer 2

Answer:

3/4

Explanation:

Given:

If we subtract  1/2 from a number and multiply the result by 1/2, we will get 1/8.

To Find :

The number from which if we subtract 1/2 from a number and multiply the result by 1/2, we get 1/8.

Solution :

Let the number be “x”

According to the question,

$\implies \sf{} \bigg(x-\dfrac{1}{2}\bigg) \times\bigg(\dfrac{1}{2}\bigg)=\dfrac{1}{8}$

$\implies \sf{}x-\dfrac{1}{2}=\dfrac{1}{8}\div\dfrac{1}{2}$

$\implies \sf{}x-\dfrac{1}{2}=\dfrac{1}{8}\times\dfrac{2}{1}$

$\implies \sf{}x-\dfrac{1}{2}=\dfrac{1}{4}\times\dfrac{1}{1}$

$\implies \sf{}x-\dfrac{1}{2}=\dfrac{1}{4}$

$\implies \sf{}x=\dfrac{1}{4}+ \dfrac{1}{2}$

$\implies \sf{}x=\dfrac{1\times1+1\times2}{4}$

$\implies \sf{}x=\dfrac{1+2 }{4}$

$\implies \sf{}x=\dfrac{3}{4}$

Therefore 3/4 is the number from which if we subtract 1/2 from a number and multiply the result by 1/2, we get 1/8.