Question

The number of illiterate persons in a country decreased from $150lakh$ to $100lakh$ in a year. What is the percentage decrease of illeterate persons?

Hint : $\left[\frac{Decreaseinnumberofpeople}{Originalnumberofpeople}\times 100\right]$

Answer 1

Let's find the percentage decrease of illeterate persons.

We have $\left[\frac{Decreaseinnumberofpeople}{Originalnumberofpeople}\times 100\right]$

i.e.,

$$\begin{gathered} =\left(\frac{150-100}{150}\right)\times 100 \\ =\frac{50}{150}\times 100 \\ \frac{=100}{3} \\ =33.333 \end{gathered}$$

Hence, the answer is $33.333$