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MyPTSMail Forums > Puzzles and Brain Teasers > General > Topic: Original Speed
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denise
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« on: January 08, 2009, 07:16:49 am »
If a car had increased its average speed for a 210 mile journey by 5 mph the journey would have been completed in 1 hour less.  What was the original speed of the car for the journey?
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tony
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« Reply #1 on: January 12, 2009, 07:09:33 am »
30 miles per hour

At thirty miles per hour it would take 7 hours, at 35 miles per hour it would take 7 hours.
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denise
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« Reply #2 on: January 13, 2009, 07:51:03 am »
You are correct.  You are pretty good at these.
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