Question

if 60% of a is 45 then find the value of a​

Answer 1

Answer:

60 % a = 450.6 a

= 45a

= 45/0.6a= 75.

Answer 2

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

       Given data:- $60\%$ of a number is $45$ .

        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 required number be $x.$

         Therefore,

           $\Rightarrow 60\%\times x=45\\\Rightarrow \frac{60}{100}\timesx=45\\\Rightarrow x=\frac{100\times45}{60}=75.$

        Hence, the required number will be $75.$