Question

A car moves at a speed of 48 km/hr for first 10 minutes and then at a speed of 30 km/hr for the next 10 minutes. Calculate the total distance covered by the car.

Answer 1

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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