Question

A school sent $480$ students for class X examination and out of them $420$ passed. Another school sent $550$ students and out of them $495$ students passed. Which school gave better results?

Answer 1

Given:

In first school $420$ out of $480$ students passed

In second school $495$ out of $550$ students passed.

We know that for calculating percent of a number, divide the number by the whole and multiply by 100.

Now,

$420$ of $480$ $=\frac{420}{480}\times 100$

$$\begin{gathered} =\frac{420\times 100}{480} \\ =\frac{42000}{480} \\ =87.5\% \end{gathered}$$

$495$ of $550$ $=\frac{495}{550}\times 100$

$$\begin{gathered} =\frac{495\times 100}{550} \\ =\frac{49500}{550} \\ =90\% \end{gathered}$$

Hence, result of first school is $87.5\%$ and result of second school is $90\%$.

Thus, second school gives better results.