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1 - One-line solution, Physics style
The distance under the question is = 17*2 = 34 miles.
2 - One-line solution, Physics style with more explanations
The distance under the question is = 17*2 = 34 miles.
Explanations.
17+83 = 100 mph in the denominator is the relative speed of the participants, i.e. the rate of decreasing the distance between them.
= = 2 hours is the time before they meet.
Thus is "at what distance from point A will they meet".
3 - Algebra style solution using equation
The equation is
17*t + 83*t = 200,
which says that the sum of the distances each participant covers before they meet is equal to the total initial distance of 200 miles.
From the equation,
t =
is the time to get the meeting point.
Hence, is the distance from the point A which the cyclist will cover when they meet each other,
exactly as it was explained in Solutions 1 and 2.
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For the introductory lessons on Travel and Distance see the lessons
- Travel and Distance problems
- Travel and Distance problems for two bodies moving in opposite directions
- Travel and Distance problems for two bodies moving in the same direction (catching up)
in this site.