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18-11-2014
Mathematics

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The sum of three consecutive numbers is 90. What is the smallest number of the three numbers?

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kittymaniac kittymaniac

18-11-2014

The three numbers are n, n+1, and n+2.

n + n + 1 + n + 2 = 90
3n + 3 = 90
3n = 87
n = 29

The smallest number is then 29.
n = 29
n + 1 = 30
n + 2 = 31

So the three numbers are 29, 30, and 31. Hope this helps! :)

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