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Percentages SAT question
Math · Problem-Solving and Data Analysis · Medium · Answer it here, explanation included.
A number n is increased 6%. If the result is 318, what is the value of n ?
ExplanationShow
Choice C is correct. The decimal equivalent of 6% is 0.06. Since increasing the number n by 6% yields the number 318, this situation can be represented by the equation 
, or 
. Dividing both sides of this equation by 1.06 yields 
.
Choice A is incorrect. This is the result when n is increased by 60%, not by 6%. Choice B is incorrect. This is the approximate result of decreasing 318 by 6%. Choice D is incorrect. This is the approximate result of increasing 318 by 6%.
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