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The price of a model M camera is $209 and the price of a

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The price of a model M camera is $209 and the price of a [#permalink] New post 16 Nov 2007, 11:15
The price of a model M camera is $209 and the price of a special lens is $69. When the camera and lens are purchased together, the price is $239. The amount saved by purchasing the camera and lens together is approximately what percent of the total price of the camera and lens when purchased separately?

(A) 14%
(B) 16%
(C) 29%
(D) 33%
(E) 86%
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Re: Camera & Lens [#permalink] New post 16 Nov 2007, 12:23
yogachgolf wrote:
The price of a model M camera is $209 and the price of a special lens is $69. When the camera and lens are purchased together, the price is $239. The amount saved by purchasing the camera and lens together is approximately what percent of the total price of the camera and lens when purchased separately?

(A) 14%
(B) 16%
(C) 29%
(D) 33%
(E) 86%


= [(209+69) - 239)] / (209+69)
= 39 / 278
= 39 / 278
= 14%
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Re: Camera & Lens [#permalink] New post 16 Nov 2007, 12:37
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yogachgolf wrote:
The price of a model M camera is $209 and the price of a special lens is $69. When the camera and lens are purchased together, the price is $239. The amount saved by purchasing the camera and lens together is approximately what percent of the total price of the camera and lens when purchased separately?

(A) 14%
(B) 16%
(C) 29%
(D) 33%
(E) 86%


For estimates, just round the numbers to 210, 70, and 240.

Thus, Savings = (210 + 70) - (240) = 40
Amount Saved/Total Cost = 40/280 = 1/7, then some quick division gives you an estimate of 14%.
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Re: Camera & Lens [#permalink] New post 16 Nov 2007, 14:24
yogachgolf wrote:
The price of a model M camera is $209 and the price of a special lens is $69. When the camera and lens are purchased together, the price is $239. The amount saved by purchasing the camera and lens together is approximately what percent of the total price of the camera and lens when purchased separately?

(A) 14%
(B) 16%
(C) 29%
(D) 33%
(E) 86%


Total cost whenbaought seperately = 209+69=278
Extra cost paid = 278-239=39

Amount saved = 39*100/278=14% answer A
Re: Camera & Lens   [#permalink] 16 Nov 2007, 14:24
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