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Question

A traveler required a total of 12 h on the round trip, averaging 20mi/h and 30 mi/h. Find a time in hours going using a T for this.
10 years ago

Answers

Steve
If the distance is d, then since time = distance/speed,

d/20 + d/30 = 12
d = 144

No idea which speed is coming or going.
10 years ago

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