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The cost of sending a package is T cents for the first 1/4

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Manager
Joined: 08 Jun 2008
Posts: 70

Kudos [?]: 9 [0], given: 0

The cost of sending a package is T cents for the first 1/4 [#permalink]

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09 Nov 2008, 13:09
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

The cost of sending a package is T cents for the first 1/4 kilogram and T/5 cents for each 1/4 kilogram or fraction there of. What is the cost in cents, to send a P kilogram package at this rate where P is an integer grater than 1?

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SVP
Joined: 29 Aug 2007
Posts: 2472

Kudos [?]: 843 [0], given: 19

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09 Nov 2008, 13:55
stingraybullray wrote:
The cost of sending a package is T cents for the first 1/4 kilogram and T/5 cents for each 1/4 kilogram or fraction there of. What is the cost in cents, to send a P kilogram package at this rate where P is an integer grater than 1?

= T + (P - 1/4) (T/5)/(1/4)
= T + {(4P-1)/4}(4T/5)
= T + (4P-1) (T/5)
= T {1 + (4P-1)/5}
= T (5 + 4P -1)/5
= T (4 + 4P)/5
= 4T (1 + P)/5

this doesnot cover the fraction in full if the fraction is smaller than 1/4.
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Kudos [?]: 843 [0], given: 19

Re: Sending a Package   [#permalink] 09 Nov 2008, 13:55
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