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# An airline company pays \$10,000 less for each additional

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Senior Manager
Joined: 02 Oct 2005
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06 Nov 2005, 13:22
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An airline company pays \$10,000 less for each additional airplane ordered. What would be the total price for 5 airplanes?
(1) The first 2 airplanes cost 50% of the total price.
(2) The last airplane costs half as much as the first.

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VP
Joined: 30 Sep 2004
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06 Nov 2005, 13:53
D)...1) 2a-10000=5a-40000...solver a to get the price of the first plane....2) 2(a-40000)=a...same as above...
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If your mind can conceive it and your heart can believe it, have faith that you can achieve it.

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Director
Joined: 14 Sep 2005
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07 Nov 2005, 06:01
christoph wrote:
D)...1) 2a-10000=5a-40000...solver a to get the price of the first plane....2) 2(a-40000)=a...same as above...

But, how do we know that this discount begins with second order?
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Senior Manager
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07 Nov 2005, 20:48
OA is D.

each additional airplane ordered ... the word 'additional' means that discount counts from second plane.

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07 Nov 2005, 20:48
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