A car moves with a speed of 45 km/hr for 1800 sec from point A to point B, 30 km/hr for 60 mins from point B to point C and 40 km/hr for two hours from point C to point D. Calculate the average speed of the car from point A to point C.
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Answer:
35
Explanation:
from point A to B distance covered = 45km x 0.5 hr= 22.5 km
From point B to C distance covered = 30km x 1hr= 30 km
Average speed from A to C = total distance covered / total time taken = (22.5 + 30) / 1.5hr = 52.5/ 1.5= 35 km/hr
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Explanation:here the answer is given
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