Question

if you subtract one upon two from number and multiply the result by one upon two you get 1 upon 8 what is the number​

Answer 1

$\huge {\mathfrak {\red {Question :-}}}$

• If you subtract $\dfrac {1}{2}$ from a number and multiply the result by $\dfrac {1}{2}$ you get $\dfrac {1}{8}$ .What is the number?

$\huge {\mathfrak {\pink{Solution :-}}}$

Let the required number be x.

Atq,

$\implies (x - \dfrac{1}{2} ) \times \dfrac{1}{2} = \dfrac{1}{8} \\ \\ \implies x - \dfrac{1}{2} = \dfrac{1}{8} \div \dfrac{1}{2} \\ \\ \implies x - \dfrac{1}{2} = \dfrac{1}{8} \times \dfrac{2}{1} \\ \\ \implies x - \dfrac{1}{2} = \dfrac{1}{4} \\ \\ \implies x = \dfrac{1}{4} + \dfrac{1}{2} \\ \\ \implies x = \dfrac{1 + 2}{4} \\ \\\implies x = \dfrac{3}{4}$

$\green{\tt {\therefore{The\: required \:number\:is\:\dfrac{3}{4}.}}}$

$\rule {307}{2}$