A car takes 3 hr to travel 240 km.
But a train takes 2 hr to cover the same
distance find the ratio of their speed
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The ratio of their speeds is 2:3
Given:
Distance travelled = 240 km
Time taken by car = 3 hr
Time taken by train = 2 hr
To find: ratio of their speeds
Solution:
Distance travelled by car = 240 km
Time taken by car = 3 hr
⇒ Speed = Distance/Time = 240/3
⇒ Speed of car = 80 km/hr
Also,
Distance travelled by train = 240 km [since the distance is same]
Time taken by train = 2 hr
⇒ Speed = Distance/Time = 240/2
⇒ Speed of train = 120 km/hr
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Ratio of speeds = speed of car : speed of train
= 80:120
= 8:12
= 2:3
∴ The ratio of their speeds is 2:3.
SPJ2
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