The ratio between the speeds of two buses is 5 : 3. If the

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The ratio between the speeds of two buses is 5 : 3. If the 1st bus runs 400 km in 8 h, then find the speed of the 2nd bus.?

1. 30 km/h
2. 15 km/h
3. 27 km/h
4. 37 km/h

Correct Option: A

Let speed of 1st bus = 5k
and speed of 2nd bus = 3k
According to the question,
5k = 400/8 = 50
∴ k = 50/5 = 10
∴ Speed of 2nd bus = 3k = 3 x 10 = 30 km/h