Question

A number when decreased by 10 % gives 45 . The number is? will mark brainlist

Answer 1

$\Large \fbox \red {Question \: :}$

A number when decreased by 10 % gives 45. What is the number?

$\Large \fbox \red {Answer \: :}$

$\implies$ Let the number be x.

$x \: - \: 10\% \: of \: x \: = \: 45$

$x \: - \: \frac{x}{10} = 45$

$\frac{9x}{10} = 45$

$9x = 450$

$x = \frac{450}{9}$

$x = 50$

$\therefore$ The number is 50.

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Answer 2

Answer:  A number when decreased by 10 % gives 45. Then the number is 50.

Step-by-step explanation:

Let the number be x.
According to question, when the number is decreased by 10% it gives 45.

Here we will subtract 10% of x from x.
⇒ x - 10% of x = 45

⇒ $x- \frac{10x}{100} =45$

⇒$\frac{90x}{100} =45$

⇒$x=\frac{4500}{90}$

⇒$x=50$

∴x= 50

The correct answer is 50.

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