A man travels $m$ feet due north at $2$ minutes per metre. He returns due south to his starting point at $2$ metre per minute. The average rate in miles per hour for the entire trip is:

75

48

45

24

impossible to determine without knowing the value of

m

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A man travels

m

feet due north at

2

minutes per metre. He returns due south to his starting point at

2

metre per minute. The average rate in miles per hour for the entire trip is:

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Question Text

A man travels

m

feet due north at

2

minutes per metre. He returns due south to his starting point at

2

metre per minute. The average rate in miles per hour for the entire trip is:

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