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Mathematics, 20.10.2021 14:00 krishawnnn

Sam walked x miles at 4mph. Then he walked 2x miles at 3mph.
A) find average speed for the whole journey.
The second part of journey took 25mins longer than the first part.
B) Find the value of x.

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Sam walked x miles at 4mph. Then he walked 2x miles at 3mph.
A) find average speed for the w...
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