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Q 1 ) A family took 2hrs to drive from City A to City B at a speed of 55 miles per hour. on the way home they took 3hrs at a speed of 44 miles per hour. what was their average speed for the whole trip.
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Answer:
48.4 mile/hour
Step-by-step explanation:
Distance travelled in 1st case = 55×2=110 miles
Distance travelled in 2nd case=44×3=132 miles
Total distance travelled = 242 miles
Tolal time taken in 1st and 2nd case=2+3=5 hours
Average Speed = Total distance travelled÷ Total time taken
= 242 ÷ 5
=48.4 mile/hour
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