Question

A bus moves 300 km at a speed of 45 km per hour and then it increases its speed to 60 km per hour to travel another 500 km. Find the average speed of the bus
53*13
40*1/3
32*1/3
63=113
63 1/3
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Answer 1

Answer:

Speed of car in first 15 minutes = 40 km/h

Distance covered = speed × Time taken

60 minutes = 1 hour

15 minutes =

60

15

hour

Distance covered = 240×

60

15

=10km

Speed of car in next 15 minutes = 60 km/h

Distance covered = 60×

60

15

=15km

∴ Total distance covered = (10+15)km = 25 km

∴ 25 km is correct

Step-by-step explanation:

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Answer 2

Answer:

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