SOLUTION: Two cyclist, one averaging 8 miles per hour and the other 12 miles per hour, starting at the same place and time. If they travel in opposite directions, after how long will they be
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Question 1197166: Two cyclist, one averaging 8 miles per hour and the other 12 miles per hour, starting at the same place and time. If they travel in opposite directions, after how long will they be 98 miles apart? Answer by ikleyn(52786) (Show Source):
You can put this solution on YOUR website! .
Two cyclists, one averaging 8 miles per hour and the other 12 miles per hour,
starting at the same place and time. If they travel in opposite directions, after how long will they be 98 miles apart?
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(1) Short solution
After = = hours = 4 hours = 4 hours and 54 minutes. ANSWER
Here (8+12) = 20 miles per hour is their reproaching rate.
(2) Long solution
Write total distance equation
8t + 12t = 98 miles.
Here "t" is the unknown time.
Simplify and find "t"
20t = 98
t = = = hours = 4 hours = 4 hours and 54 minutes. ANSWER
The answer is the same.
Solved (in two different ways, for your better understanding).
