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# On a certain airline, the price of a ticket is directly proportional

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Math Expert
Joined: 02 Sep 2009
Posts: 55618
On a certain airline, the price of a ticket is directly proportional  [#permalink]

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09 Jan 2019, 02:51
00:00

Difficulty:

35% (medium)

Question Stats:

50% (01:50) correct 50% (01:26) wrong based on 26 sessions

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On a certain airline, the price of a ticket is directly proportional to the number of miles to be traveled. If the ticket for a 900-mile trip on this airline costs \$120, which of the following gives the number of dollars charged for a k-mile trip on this airline?

(A) 2k/15

(B) 2/(15k)

(C) 15/(2k)

(D) 15k/2

(E) 40k/3

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Re: On a certain airline, the price of a ticket is directly proportional  [#permalink]

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09 Jan 2019, 03:54
Bunuel wrote:
On a certain airline, the price of a ticket is directly proportional to the number of miles to be traveled. If the ticket for a 900-mile trip on this airline costs \$120, which of the following gives the number of dollars charged for a k-mile trip on this airline?

(A) 2k/15

(B) 2/(15k)

(C) 15/(2k)

(D) 15k/2

(E) 40k/3

k = 900
we get 2k/15 = 120
IMO A
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Re: On a certain airline, the price of a ticket is directly proportional   [#permalink] 09 Jan 2019, 03:54
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