Question

A car takes $4hrs$ to reach the destination by travelling at a speed of $60km/hr$. How long will it takes if the car travels at a speed of $80km/hr$.

Answer 1

Speed$=60$ km/hr

T$=4$ hrs

Distance $=$ speed $\times$ time

$=60\times 4$

$=240$ km

If speed $=80$ km/hrs

Distance$=240$ km

Time $=\frac{Distance}{Speed}=\frac{240}{80}=3$ hours.