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In a certain shop, notebooks that normally sell for 59 cents

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In a certain shop, notebooks that normally sell for 59 cents [#permalink] New post 19 Mar 2018, 11:02
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Question Stats:

90% (00:53) correct 9% (01:36) wrong based on 44 sessions
In a certain shop, notebooks that normally sell for 59 cents each are on sale at 2 for 99 cents. How much can be saved by purchasing 10 of these notebooks at the sale price?

(A) $0.85
(B) $0.95
(C) $1.10
(D) $1.15
(E) $2.00
[Reveal] Spoiler: OA

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Re: In a certain shop, notebooks that normally sell for 59 cents [#permalink] New post 02 Apr 2018, 19:33
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Let's first determine how much 10 would cost at the normal price of 59 cents. This would be 590 cents.

Secondly, let's find the cost at the sale price. If 2 cost 99 cents, and we want 10, let's rephrase and say we want 5 pairs and each pair costs 99 cents. So 5x99 should be our answer. The easiest way to do this arithmetic is to pretend we're doing 5x100, which equals 500. However, we overshot by 1 cent for each of the 5 pairs, so the real total is 495.

So what's the difference between 590 and 495? Looks like 95 cents, so the correct answer is B.
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Re: In a certain shop, notebooks that normally sell for 59 cents [#permalink] New post 07 Jul 2018, 17:30
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Carcass wrote:
In a certain shop, notebooks that normally sell for 59 cents each are on sale at 2 for 99 cents. How much can be saved by purchasing 10 of these notebooks at the sale price?

(A) $0.85
(B) $0.95
(C) $1.10
(D) $1.15
(E) $2.00


The money saved is:

59 x 10 - 99/2 x 10 = 590 - 495 = 95 cents

Answer: B
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Re: In a certain shop, notebooks that normally sell for 59 cents   [#permalink] 07 Jul 2018, 17:30
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