Question

What number is $ 20\% $ of $ 625? $

Answer 1

Hint: Percentage is the number or ratio expressed as a fraction of hundred. Here we will use the concepts of cross multiplication and will first frame the equation with the given condition and then will simplify for the resultant required value.

Complete step-by-step answer:
First of all consider,
 $
  100\% = 625 \\
  20\% = ? \;
  $
Here, use cross multiplication –
 $ = \dfrac{{20 \times 625}}{{100}} $
Simplify the above expression –
 $ = \dfrac{{625}}{5} $
Simplify the above expression finding the division for the above terms –
 $ = 125 $
Hence, $ 20\% $ of $ 625 $ is $ 125 $
So, the correct answer is “125”.

Note: Fractions are the part of the whole. Generally, it represents any number of equal parts and it describes the part from a certain size and it is the number expressed in the form of numerator upon the denominator. Know the difference between the fraction and the percentage and apply accordingly. If you want to avoid division, you can convert the fraction in the equivalent form by making the denominator in tens, hundreds and then directly shifting or placing the decimal which depends on the number of zeros in the denominator.