A truck dirver must complete a 180-mile trip in 4 housr. If his average speed is 50 miles per hour for first 3 hours , then how fast must he travel for the final hour ?
Created: 6 years ago |
Updated: 2 years ago
best des
Distance travelled in the first 3 hours = 50 x 3 = 150 mile.
Remaining distance to be covered in the final hour = 180 - 150 = 30 mile
Md Azizur Rahman
Founder of Satt
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