Friday, July 20, 2007
Car Word Problem - The Answer
(Solution Hidden)
This was a trick question in the sense that the answer is very simple:
No matter where their front bumpers meet, Car #2 will always be on the Denver side of the two cars and thus closer to Denver.
This puzzle was in the June 24, 2007 "Ask Marilyn" column in Parade magazine.
But, since this is a math blog, let's do some actual math.
Here is a second problem based on the same scenario:
Car #1 leaves San Francisco at 9 am and heads for Denver at 50 mph.
Car #2 leaves Denver at 11 am and heads for San Francisco at 60 mph.
The cities are about 1200 miles apart.
When the cars meet, which city will the meeting point be closer to?
Click here for the answer.
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1 comments:
OK, this time, no tricks. The early car closes 100 miles in the first two hours. Then they are both on the road, gap is 1100, they are moving a combined 110 mph towards each other... Then some more arithmetic.
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