Question

How many laps of a 140m by 110m field will a boy have to run in order to cover 2500m?

Answer 1

Dear student,

$$\begin{gathered} Lengthoffield=140m \\ Breadthoffield=110m \\ Dis\tan cecoveredinonelap=Perimeteroffield \\ =2\times \left(L+B\right) \\ =2\times \left(140+110\right) \\ =2\times 250 \\ =500m \\ \therefore Dis\tan cecoveredinonelap=500m \\ No.oflapstaken=\frac{Totaldis\tan ce}{Dis\tan cecoveredinonelap} \\ =\frac{2500}{500} \\ \therefore No.oflapstaken=5 \end{gathered}$$
Regards