Question

On a particular day, 16% of the students in a class remained absent. If 42 students were present on the day, find the total strength of the class

Answer 1

Let total students be x

Absent $=\frac{16}{100}\times x$

Present $=x-\frac{16x}{100}=42$

$\Rightarrow \frac{84}{100}\times x=42$

$x=\frac{100\times 42}{84}$

So $x=50=$ Total strength.