Question

Akash went to school for $168$days in a full year .If his attendance is $80\%$, find the number of days on which the school was open.?

Answer 1

Let the total number of days be $xdays$ ,

Then $80\%$ of $xdays$ = Akash's attendance days = $168days$

$$\begin{gathered} \frac{80}{100}\times x=168 \\ x=\frac{168\times 100}{80} \\ x=21\times 10 \\ x=210days \end{gathered}$$

Therefore, school was open before $210days$.