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05-12-2016
Mathematics

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Three consecutive multiples of 3 have a sum of 36. What is the greatest number?

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charstar charstar

05-12-2016

36= x+y+z
In terms of x:
x=x
y=x+3
z=x+6

36= x+x+3+x+6
36=3x+9
27=3x
x=9
9+6=15
The largest is 15

Hope this helps :)

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