14-04-2016
Mathematics

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There are three consecutive numbers such that twice the first is 20 more than the second.find the numbers? Show your solution.

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14-04-2016

consecutive numbers are 1 away from each other
numbers are
x,x+1,x+2

so
2 times first is 20 more than 2nd
2x=20+x+1
2x=21+x
x=21

numbers are
21,21+1,21+2
21,22,23

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