SOLUTION: Find the sum of all intergers between 1 and 200 that are divisible by 6

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Question 389902: Find the sum of all intergers between 1 and 200 that are divisible by 6
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi,        

Find the sum of all intergers between 1 and 200 that are divisible by 6

Describes a arithmetic sequence {6,12,18,24...198}}} first term 6, d = 6

a%5Bn%5D=a%5B1%5D%2B%28n-1%29%2Ad 

a%5B33%5D=+6%2B+6%2832%29=198 

S%5Bn%5D=%28n%2F2%29%282%2Aa%5B1%5D%2B+%28n-1%29d%29

S%5B33%5D=%2833%2F2%29%2812%2B+192%29=+33%2F2%2A204+=+highlight%283366%29