Question

$2/5$ of total number of students of a school come by car while $1/4$ of students come by bus to school. All the other students walk to school of which $1/3$ walk on their own and the rest are escorted by their parents. If $224$ students come to school walking on their own, how many students study in the school?

Answer 1

$\Rightarrow$Let the total no. of students $=x$

$\Rightarrow$No. of students who come by car$=\frac{2x}{5}$

$\Rightarrow$No. of students who come by bus$=\frac{x}{4}$

$\Rightarrow$No. of students who come by walk$=x-(\frac{2x}{5}+\frac{x}{4})$

$=\frac{7x}{20}$

$\Rightarrow$No, of students who come by walk on their own

$\Rightarrow$$\frac{7x}{20}\times \frac{1}{3}=224$

$x=1920$.