Q6. A train travels 540 km in 9 hours. What distance will be covered in 12 hours?
Q7. A cyclist travels at a speed of 10 km/h for 3 hours and then at a speed of 15 km/h for 2 hours. Find
its average speed.
Q8. A train takes 4 hours to complete a journey by travelling at a speed of 60 km/h. How long will the
train take if its speed is reduced to 40 km/h?
09. The distance between two stations is 1200 km. A train covers first half of the journey at a speed
of 60 km/h and the remaining half of the journey at a speed of 50 km/h. How much time is taken
for the whole journey? Also find the average speed of the train.
Q10. A train is running at a speed of 64 km/h:
(a) If the distance between two cities is 384 km, how much time will the train take?
(b) How far will the train go in 15 minutes?
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Answer:
Speed of car = Distance Time
= 5409 = 60 kmph
Speed of train = 2 × 60
= 120 kmph
∴ Speed of bike
= 23×120 = 80 kmph
∴ Distance covered by bike in 5 hours
= 5 × 80 = 400 km
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