Alex paid a $12 fee to receive a 10% discount off of the

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BTGmoderatorDC: Moderator; Posts: 7187; Joined: Thu Sep 07, 2017 4:43 pm; Followed by:23 members

Alex paid a $12 fee to receive a 10% discount off of the

by BTGmoderatorDC » Sat Sep 01, 2018 11:16 pm

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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

OA B

Source: Princeton Review

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Source: Beat The GMAT — Problem Solving | Sat Sep 01, 2018 11:16 pm

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Jay@ManhattanReview: GMAT Instructor; Posts: 3008; Joined: Mon Aug 22, 2016 6:19 am; Location: Grand Central / New York; Thanked: 470 times; Followed by:34 members

by Jay@ManhattanReview » Mon Sep 03, 2018 9:07 pm

BTGmoderatorDC wrote: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

OA B

Source: Princeton Review

Amount paid by Alex = 12 + 90% of b = 12 + 0.90b
Amount paid by Victor = 15 + 85% of b = 15 + 0.85b

It is given that the amount paid by Alex equals the amount paid by Victor

Thus, 12 + 0.90b = 15 + 0.85b

=> b = $60.

The correct answer: B

Hope this helps!

-Jay
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Scott@TargetTestPrep: GMAT Instructor; Posts: 8086; Joined: Sat Apr 25, 2015 10:56 am; Location: Los Angeles, CA; Thanked: 43 times; Followed by:29 members

by Scott@TargetTestPrep » Tue Oct 02, 2018 6:26 pm

BTGmoderatorDC wrote: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