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36 votes
36 votes
At 9am a car a began a journey from a point, travelling at 40 mph. at 10am another car b started travelling from the same point ai 60 mpb in the same direction as car a. at what time will car b pass car a?

User U W
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2 Answers

25 votes
25 votes

Final answer:

Car B will pass Car A at 10:40 am.

Step-by-step explanation:

To find the time at which car B passes car A, we need to determine the distance car A travels before car B catches up.

Car A started at 9 am and has been traveling for one hour until car B started. So, car A has already covered a distance of 40 miles.

Now, we need to calculate the time it takes car B to cover the same distance of 40 miles. Car B is traveling at a speed of 60 mph, so using the formula: time = distance / speed, we get time = 40 miles / 60 mph = 2/3 hours.

Since car B started at 10 am, it would take 2/3 hours from 10 am to reach car A. Converting 2/3 hours to minutes, we get 40 minutes.

Therefore, car B will pass car A at 10:40 am.

User KellyM
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2.7k points
26 votes
26 votes

Answer:

In 3h (12am)

Step-by-step explanation:

First car A Will by 10 am be 40 miles from staring point, then car B Will start going 60mph and by 11am car A Will be 80 miles from start, and car B Will be 60 miles from start in 12 am car A Will be at 120 miles and car B Will be also 120 miles

And answer is in 3h or in 12am

User Sandhurst
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2.7k points