Question

the maximum speed of a train is 80km/hr. it takes 10hrs to cover a distance of 400km.Find the ratio of its maximum speed to it's average speed

Answer 1

Ratio of its maximum speed to its average speed.
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Hence here maximum speed is given = 80 km/hr
speed when it it covers 400 km distance in 10 hours.

Speed = 400 / 10 km/hr

= 40 km/hr

Average Speed = (80 + 40)/2 km/hr

= 120/2 km/hr

= 60 km/hr

Hence,

Ratio of maximum speed to its average speed.

= Maximum speed /Average speed

= 80/60

= 8/6

= 8:6

So, 8:6 is the ratio of maximum speed to average speed.

Answer 2

The ratio of maximum speed to average speed is 8:4