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Example Questions
Example Question #1 : Expressions
In April, the price of a t-shirt is . In May, the store increases the price by 50%, so that the new price is
. Then in June, the store decreases the price by 50%, so that the t-shirt price is now
. What is the ratio of
to
?
Possible Answers:
Correct answer:
Explanation:
If the original price of the T-shirt is , increasing the price by 50% means that the new price
is 150% of
, or
.
If the price is then decreased by 50%, the new price is 50% of
or
The ratio of to
is then:
The 's in the numerator and denominator cancel, leaving
, or
.
Wei (Elaine)
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University of North Alabama, Bachelor of Science, Chemistry. Vanderbilt University, Doctor of Philosophy, Organic Chemistry.
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