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14-03-2017
Mathematics

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if 15 is the fifth number in a series of five consecutive odd numbers, what is the third number in the series ?

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KariSupreme KariSupreme

14-03-2017

The five numbers can be represented by (2n+1), (2n+3), (2n+5), (2n+7), and (2n+9), where n is an integer.
2n+9 = 15
n = 3

The third number is 2n+5 = 11

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