The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also
Answers
Answer:
Initial reading of the odometer of the car = 57321.0 km
Final reading of the odometer of the car = 57336.0 km
Distance covered by the car = Final reading of the odometer of the car - Initial reading of the odometer of the car
= 57336.0 - 57321.0 = 15 km
The given car starts at 8:30 a.m. and stops at 8:50 a.m.
Therefore, time taken by the car to cover the distance is (8:50 — 8:30) min = 20 min
Distance covered by the car =15 km
Time taken by the car = 20 min
speed =distance covered/
time taken
=15/20=0.75km/min
again, 60 min=1 hour
=20 min= 1/60×20=1/3 h
time taken by the car=1/3 h
speed=distance covered/
time taken
=15 / 1/3 =45 km/h
Explanation:
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