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Ralph bought a stereo priced at $120. If the total price he paid at th

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Ralph bought a stereo priced at $120. If the total price he paid at th [#permalink]

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New post 07 Feb 2016, 10:50
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A
B
C
D
E

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Question Stats:

89% (00:40) correct 11% (01:26) wrong based on 29 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
[Reveal] Spoiler: OA

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Ralph bought a stereo priced at $120. If the total price he paid at th [#permalink]

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New post 07 Feb 2016, 12:10
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\(\frac{133,50-120}{120}*100=11,25\)
Answer C
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Re: Ralph bought a stereo priced at $120. If the total price he paid at th [#permalink]

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New post 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%
correct answer - C

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Re: Ralph bought a stereo priced at $120. If the total price he paid at th   [#permalink] 06 May 2016, 13:37
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