Question

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

Answer 1

your answer is attached ,hope it help u....

Answer 2

$\textbf{Solution:}$

Let the required number be x.

A/Q,


$= > \frac{1}{2} (x - \frac{1}{2} ) = \frac{1}{8} \\ \\ = > \frac{1}{2} x - \frac{1}{4} = \frac{1}{8} \\ \\ = > \frac{1}{2} x = \frac{1}{8} + \frac{1}{4} \\ \\ = > \frac{1}{2} x = \frac{1 + 2}{8} \\ \\ = > \frac{1}{2} x = \frac{3}{8} \\ \\ = > 8x = 6 \\ \\ = > x = \frac{6}{8} = \frac{3}{4}$

$\bold{\underline{Verification}}$

Here,

$= > \frac{1}{2}(x - \frac{1}{2} ) = \frac{1}{8} \\ \\ = > \frac{1}{2} ( \frac{3}{4} - \frac{1}{2} ) = \frac{1}{8} \\ \\ = > \frac{1}{2} ( \frac{3 - 2}{4} ) = \frac{1}{8} \\ \\ = > \frac{1}{2} \times \frac{1}{4} = \frac{1}{8} \\ \\ = > \frac{1}{8} = \frac{1}{8}$


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