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# If You Subtract 1/2 from a Number and Multiply the Result by 1/2, You Get 1/8. What is the Number - CBSE Class 8 - Mathematics

ConceptSolving Equations Having the Variable on Both Sides

#### Question

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

#### Solution

Let the number be x. According to the question,

(x - 1/2) xx 1/2 = 1/8

On multiplying both sides by 2, we obtain

(x - 1/2) xx 1/2 xx 2 = 1/8 xx2

x - 1/2 = 1/4

On transposing 1/2  to R.H.S, we obtain

x = 1/4 + 1/2

= (1+2)/4 = 3/4

Therefore, the number is 3/4

Is there an error in this question or solution?

#### APPEARS IN

NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 2: Linear Equations in One Variable
Ex. 2.20 | Q: 1 | Page no. 28

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Solution If You Subtract 1/2 from a Number and Multiply the Result by 1/2, You Get 1/8. What is the Number Concept: Solving Equations Having the Variable on Both Sides.
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