A man travels 100 miles at 20 miles per hour, 60 miles at 30 miles per hour and 80 miles at 10 miles per hour, what is his average rate for the three trips?

Created: 7 years ago | Updated: 2 months ago

Updated: 2 months ago

18 miles per hr

17 miles per hr

20 miles per hr

16 miles per hr

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Des

708

Best Ans:

Time travelled at 20 miles//hr = 100/20 = 5 hrs

Time travelled at 30 miles//hr = 60/30 = 2 hrs

Time travelled at 10 miles//hr = 80/10 = 8 hrs

Total time travelled = 5 + 2 + 8 = 15 hrs

Total travelled = 100 + 60 + 80 = 240 miles

Average rate = 240 / 15 = 16 miles per hour

7 years ago

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Md Azizur Rahman

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