Question

First bus travels $36kmin30minutes$ and second bus travels $120kmin2hours$. Which bus does travels fast?

Answer 1

Step1: Finding speed of the first bus

Time taken by first bus to travel distance of $36km=30minutes$

We know that, $Speed=\frac{dis\tan ce}{time}$

Then, speed of the first bus$=\frac{36}{30}$

$=1.2km/minute$

Step2: Finding speed of the second bus

Time taken by second bus to travel distance of $120km=2hours$

$=2\times 60$ $\left[1hour=60minutes\right]$

$=120minutes$

Then, speed of the second bus$=\frac{120}{120}$ $\left[Speed=\frac{dis\tan ce}{time}\right]$

$=1km/minute$

Step3: Comparing the speed of the two buses

Clearly, speed of of first bus is greater than the second bus

Since, $1.2km>1km$

Hence, first bus travels fast.