Question

a car moves with a speed 40 km/hr for 15 minutes and then with a speed 60 km/hr for the next 15 minutes.calculate the total distance covered by them

Answer 1

Answer:

1st half distance=10 2nd half=15 total=25

Explanation:

change minutes into hour to find distance(speed×time)

Answer 2

Answer:

hey mate your answer

Explanation:

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

Distance covered = speed × Time taken

60 minutes = 1 hour

15 minutes = 6015 hour

Distance covered = 240×6015=10km

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

Distance covered = 60×6015=15km

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

∴ 25 km is correct

hope it helps you