At 8 a.m. the odometer of a car reads 1875. What is the distance covered by the car and its speed when the time is 09.15 a.m. and the odometer reads 1955?
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Answers
Answer:
Distance covered is 80.
Speed 64kmph
Explanation:
Assumption: car is moving at constant speed and distance is measured is in km
Distance covered = 1955 - 1875 = 80
Time taken = 9.15 am - 8.00 am = 75 min = 1.25 hours
Speed = distance / time
Speed = 80 km / 1.25 hours = 64 kmph
Answer:
The initial reading of the odometer of the car =57321.0 km
The final reading of the odometer of the car = 57336.0 km
The car starts at 8:30 AM and stops at 8:50 AM.
Distance covered by car = (57336 - 57321) km = 15 km
Time taken between 08:30 AM to 08:50 AM = 20 minutes = 20/60 hour = 1/3 hour
So Speed in km/min
Speed = (Distance travelled)/ (Time)
= (15km)/ (20min)
= 0.75km/min
Speed in km/h Speed = (Distance travelled)/ (Time)
= (15km)/ (1/3h)
= (15 x 3) km/ (1h)
= 45km/h
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