Question

The result of a number, when decreased by 20%, is 192. Find the number.​

Answer 1

Step-by-step explanation:

➡Let number be x

=Given that, a number, when decreased by 20%, is 192.

$= x - 20\% \: of \: x \: = 192 \\ \\ = x - \frac{20}{100} \times x = 192 \\ \\ = \frac{100x - 20x}{100} = 192 \\ \\ = \frac{80x}{100} = 192 \\ \\ = 80x = 192 \times 100 \\ \\ = 80x = 19200 \\ \\ = x = \frac{19200}{80} \\ \\ = > x = 240..is \: \: the \: \: answer..$

Hope it help's

Answer 2

Answer:

let the no. is x

According to que.

When decreasing 20% then it become 192

$\sf \implies \: x - 20\% \: of \: \: x \: = 192$

$\sf \implies \: x - 20\times \frac{x}{10} \: = 192$

$\sf \implies \: x - \cancel{20}\times \frac{x}{ \cancel{100} \: 5} \: = 192$

$\sf \implies \: x - \frac{x}{5} \: = 192$

$\sf \implies \: \frac{4x}{5} \: = 192$

$\sf \implies \: x\: = 192 \times \frac{5}{4}$

$\green{\sf \implies \: x\: = 240 }$