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: 6 years ago |
Updated: 2 years ago
best des
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
Md Azizur Rahman
Founder of Satt
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