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3 years ago

12

On a trip of d miles to another city, a truck driver's average speed was x miles per hour. On the return trip, the average speed

was y miles per hour. The average speed for the round trip was 30 miles per hour.

1 answer:

max2010maxim [7]3 years ago

7 0

Mile x was 15 miles long per hour while Y was 15 miles per hour on the two trips

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