Question

The train a travelled a distance of 120 km in 3 hours whereasanother train B travelled a distance of 180km in 4 hours. Which train travelled faster?

Answer 1

$speed = \frac{distance}{time} \\ speed \: of \: train \: a = \frac{120}{3} = 40km.hr \\ speed \: of \: train \: b = \frac{180}{4} = 45km.hr \\ \\ therefore \: \: train \: \: b \: is \: faster$

Answer 2

train a travels
Distance=120
time=3hr
speed=distance/time
speed=120/3
=40ans
train b travel
distance=180
time=4hr
speed=distance/time
speed=180/4
=4.5ans
now,I solved this speed of train a and train b u have to decide which train travels faster