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14 Apr 2017, 11:38
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Difficulty:

25% (medium)

Question Stats:

74% (01:36) correct 26% (02:09) wrong based on 23 sessions

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Alex paid a $12 fee to receive a 10% discount off of the list price on all books he bought in a six-month period. Victor paid a$15 fee to receive a 15% discount off of the list price on all books he bought in the same period. If each bought books with a total list price of b during that period and each paid the same net amount, including the discount and the fee, what is b ?

A. $54 B.$60
C. $66 D.$100
E. $120 [Reveal] Spoiler: OA _________________ Official PS Practice Questions Press +1 Kudos if this post is helpful Manager Joined: 05 Nov 2016 Posts: 89 Re: Alex paid a$12 fee to receive a 10% discount off of the list price on [#permalink]

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14 Apr 2017, 14:37
1
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12 +$$\frac{90*b}{100}$$ = 15 +$$\frac{85*b}{100}$$..(90% value was paid as discount is 10 %.. on similar lines 85%)
$$\frac{5b}{100}$$= 3
b = 60
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