SOLUTION: A motorist takes 4 hours to travel 380 km,how long will he take to travel 570 km at the same average speed

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Question 987974: A motorist takes 4 hours to travel 380 km,how long will he take to travel 570 km at the same average speed
Answer by ikleyn(52775) About Me  (Show Source):
You can put this solution on YOUR website!
.
380%2F4 = 570%2Ft,

where t is unknown time.

Hence,

t = %28570%2A4%29%2F380 = %283%2A4%29%2F2 = 6 hours.

Or,  in other words:

The average velocity is  380%2F4 = 95 km%2Fh.

Hence,  the unknown time is  570%2F95 = 6 hours,  the same answer.