SOLUTION: Give the sum of all odd numbers less than 20, 30, 40 & 55

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Question 976590: Give the sum of all odd numbers less than 20, 30, 40 & 55
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
O%3C20
S%5B1%5D=1%2B3%2B5%2B7%2B9%2B11%2B13%2B15%2B17%2B19
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O%3C30
S%5B2%5D=S%5B1%5D%2B21%2B23%2B25%2B27%2B29
.
.
O%3C40
S%5B3%5D=S%5B2%5D%2B31%2B33%2B35%2B37%2B39
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.
O%3C55
S%5B4%5D=S%5B3%5D%2B41%2B43%2B45%2B47%2B49%2B51%2B53