Question

if average walking speed of a girl from her home to school is 4km/h and it takes her 15 minutes to reach there , calculate the distance between her home and the school

Answer 1

Dear student,

$$\begin{gathered} Given: \\ averagewalkingspeedofthegirl,v=4km/h \\ Timetakenbyhertoreachhomefromschool,t=15min=15\times \frac{1}{60}h=\frac{1}{4}h \\ Therefore,dis\tan cebetweenherhomeandherschool, \\ s=v\times t(Since,v=\frac{s}{t}) \\ \Rightarrow s=4km/h\times \frac{1}{4}h \\ =1km \end{gathered}$$

Regards