train A cross a pole in 25 sec and another train B crosses a platform on 1 min 15 sec. The length of train A is half of the length of train B. what is the ratio between the speed of train A and train B?
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Answered by
1
ANSWER
.........................
Let the distance be L km
Time taken by car = L/35 and time taken on cycle =L/10
L/10 + L/35 =18
∴L = 140 km
.........................
Let the distance be L km
Time taken by car = L/35 and time taken on cycle =L/10
L/10 + L/35 =18
∴L = 140 km
Answered by
2
Answer:
3:2
Step-by-step explanation:
If the length of train A be x metre, then length of train B = 2x metre
When a train crosses a pole, it covers a distance equal to its own length.
∴ Required ratio = x/25 : 2x/75
= (x/25)×75 : (2x/75)×75 = 3 : 2
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