Question

If a car moves from A to B (distance between A & B is 45 km) and then B to C (distance between B & C is 50 km) in 50 minutes and 60 minutes respectively. Then, find average speed of car.

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Answer 1

Answer:

25

Explanation:

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

Answer 2

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