Question

Find the no whose 20% is 90 ​

Answer 1

450 is the answer
Answer in picture

Answer 2

• As per the data given in the question, we have to determine the required number.

         Given data:- $20\%\ is\ 90.$

         To find:- $20\%\ is\ 90=?.$

          Solution:-

• A percentage is a fraction of an amount expressed as a particular number of hundredths of that amount.

• It is denoted by $\%.\ 1\% \ means \ \frac{1}{100} .$

• We are using the unitary method to calculate the percentage of numbers.

• Fractions can be converted into percentages and vice-versa.

• Percentages are reversible. For example, $30\% \ of 40$ is the same as $40\% \ of \ 30.$ .

• Let the number be $x$.

     therefore,

              $\Rightarrow x\times\frac{20}{100} =90\\\Rightarrow x=\frac{90\times100}{20} \\ \Rightarrow x=90\times5\\\Rightarrow x=450.$

Hence we will get the $x=450.$