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M10-30

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Joined: 02 Sep 2009
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M10-30  [#permalink]

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New post 16 Sep 2014, 00:43
1
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

89% (01:27) correct 11% (01:32) wrong based on 46 sessions

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Math Expert
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Posts: 57155
Re M10-30  [#permalink]

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New post 16 Sep 2014, 00:43
1
Official Solution:

Product A is 10 percent more expensive than Product B. Product B is 10 percent cheaper than Product C. If the price of the Product C is $300, how much cheaper is Product B than Product A?

A. $2.00
B. $3.00
C. $9.00
D. $15.00
E. $27.00

\(A = 1.1B; B = 0.9C\). Therefore \(A = 1.1*0.9C = 0.99C\). If \(C\) is $300 then \(A\) is $297 and \(B\) is $270. \(B\) is $27 cheaper than \(A\).

Answer: E
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Re: M10-30  [#permalink]

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New post 11 Aug 2019, 10:39
Bunuel Can I consider C to be 10% more expensive than B. Is that correct? and then equate A and C
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Re: M10-30   [#permalink] 11 Aug 2019, 10:39
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