Question

A car moves with a speed of 60 km/h for 20 minutes and then with a speed of 50 km/h
for 30 minutes. Calculate the total distance covered by the car.​

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

60km/hr for 20 minutes

Distance = speed X time

60x1/3 =20

50 Km/hr for 30 minutes

Distance=Speed X Time

25/50 X 30/60

=25hr

20+25=45 km

Hope this was helpful