Question

A bus covers 128km in 2hours and a train covers 240km in 3hours. Find the ratio of their speed.

Answer 1

speed of bus = 128/2 = 64km/hr
speed of train = 240/3 = 80km/hr
so ratio = 64/80
= 32/40
= 16/20
= 4/5
so ratio = 4:5

Answer 2

ANSWER

Given,

For Car

Time = 2 hours

Distance = 128 km.

Now, speed = $\dfrac{Distance} {Time}$

=>Speed = $\dfrac{128} {2}$

=>Speed = 64km/hr.

For Train

Time = 3 hours

Distance = 240km.

Now speed = $\dfrac{Distance} {Time}$

=>Speed = $\dfrac{240} {3}$

=>Speed = 80km/hr.

Now ratio of their Speed Will be =>

$\dfrac{80} {64}$

=> $\dfrac{5} {4}$

So their ratio of sped will be 5:4

Remember

speed = $\dfrac{Distance} {Time}$