A truck travels at 40km/h for 3 hour and 35km/h for 2h.Find its average speed
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Answer:
38 km/h
Step-by-step explanation:
we can konw how much it travelled by multiplying 40×3 for first 3 hours
40 x 3 = 120km
it travelled 120 km first
then we can multiply 35 by 2
35 x 2 =70 km
if travelled 70 km after that
total distance is distance 1 + distance 2
70 + 120 = 190km
total time is time 1 + time 2
3 + 2= 5
average speed =
(total distance divide by total time)
190 divide 5 = 38 km/h
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