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# how to solve this

**jrahme10**07-18-16

# how to solve this

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im new in optimizely , im still learning so i had a little quiz and they asked me that question , and i had to choose between 12%, 18% , 20% and 40% .

the right answer was 18% , i just want to know what is the calculation that i have to do to get this result.

**robertchan**07-18-16

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Robert Chan

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