Question

A car covers 72 km in 2 hours and a train cover 120km
in 3 hours. Find the ratio of their speeds.​

Answer 1

Answer:

9:10

Step-by-step explanation:

Distance covered by a car in 1 hr=36

Distance covered by a train in 1hr=40

Therefore 36/40=9/10=9:10

Answer 2

Distance = d1 = 72kms

Time = t1 = 2 hrs

speed = d1/t1

= 72/2

s1 = 36km/h

Distance = d2 = 120kms

Time = t2 = 3 hrs

speed = d2/t2

= 120/3

s2 = 40km/h

The ratio of their speeds:-

= s1/s2

= 36/40

= 9/10

Ratio = 9 : 10

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