SOLUTION: Sum of the multiple of 6 from 1 to 100

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Question 976431: Sum of the multiple of 6 from 1 to 100
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Do it like this one:
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What is the sum of the multiples of 3 from 2 to 62
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= sum of the multiples of 3 from 3 to 60 inclusive.
60-3 = 57
57/3 = 19
--> 20 numbers
--> 10 pairs
3 + 60 = 63
6 + 57 = 63
etc
= 10*63
= 630

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