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07 Feb 2016, 10:50
00:00

Difficulty:

25% (medium)

Question Stats:

85% (01:03) correct 15% (01:50) wrong based on 38 sessions

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Ralph bought a stereo priced at $120. If the total price he paid at the counter was$133.50, which included the price of the stereo plus x percent sales tax, which of the following is the best estimate of x?

A. less than 5
B. between 5 and 9
C. between 9 and 12
D. between 12 and 15
E. more than 15

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Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
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WE: Information Technology (Consulting)

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06 May 2016, 13:37
Basically we have to determine ($133.50 -$120) i.e. $13.50 is what percent of cost price of the stereo =$120
$$\frac{13.50}{120}$$ * 100 = 11.25%