A car during its journey travels 30 minutes at a speed of 40 km/hr another 45 min at a speed of of 60km/hr and 1 hour at a speed of 70km/hr find avg speed
Answers
Answered by
4
Answer:
Distance traveled in first 30 minutes (0.5 hours) = speed x time = 40 x 0.5 = 20 Km
Distance traveled in next 45 minutes (0.75 hours) = s x t = 60 x 0.75 = 45 Km
distance traveled in last one hour = s x t = 70 x 1 = 70 Km
Total distance traveled = 20 + 45 + 70 = 135 Km
Total time traveled = 2.25 hours
Average speed = total distance / total time = 135 / 2.25 = 60 Km/h
Answered by
1
Answer:
0.76 km/hr
Explanation:
total km 135 / total time170
Similar questions