Examples of Math Problems
examples of math problems that I like, solved, etc.
Wednesday, August 21, 2013
How many of the first 600 counting numbers are divisible by 2 or 3
Numbers divisible by 6 are divisible by 2 and by 3 so we need to avoid counting them twice.
600(1/2+1/3-1/6)=400
:)
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