Question

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

number?​

Answer 1

Given that:

• 1/2 subtracted from a number and multiply the result by 1/2, we get 1/8.

To Find:

• What is the number?

Let us assume:

• The certain number be x.

Finding the number:

According to the question.

⟶ (x - 1/2) × 1/2 = 1/8

⟶ (x - 1/2) = 1/8 × 2/1

⟶ x - 1/2 = 1/4

⟶ x = 1/4 + 1/2

⟶ x = 1/4 + 2/4

⟶ x = 3/4

Hence,

• 3/4 is the required number.

Answer 2

Question:

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

Answer:•

• $\footnotesize{\bold{Let~ the ~number ~is~ \blue{X}   }}$ 

According to the question,

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

so,

• $\sf{(x-\dfrac{1}{2})×\dfrac{1}{2}=\dfrac{1}{8}  }$ 

• $\tt{(x-\dfrac{1}{2})=\dfrac{1}{8}×\dfrac{2}{1}   }$ 

• $\bold{(x-\dfrac{1}{2})=\dfrac{1}{4}   }$ 

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

• $\tt{x=\dfrac{1+2}{4}   }$($\because{\footnotesize{LCM~ of~ 2,4 ~is ~4)   }}$   

• $\mathbb{X=\dfrac{3}{4}   }$ 

$\therefore$The number is $\footnotesize{\bold{\red{\dfrac{3}{4}   }}}$