Posted by Anonymous on Tuesday, October 2, 2012 at 11:34pm.
California has more national parks than many other states. The sum of the two digits in its number of parks is 6. Both digits are even. If California has fewer than 30 national parks, how many does it have?

Math  Jennifer, Wednesday, October 3, 2012 at 10:28am
There are 2 digits in the number of national parks, and this number is less than 30
Therefore, you know that the number of parks is between 10 and 30
Both digits are even. . .there are only a few numbers between 10 and 30 that have 2 even digits. They are
20, 22, 24, 26, 28
Only one of these numbers has a sum of digits that is equal to 6. It is ?
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