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A milk vendor sells milk at Cost Price but still gains 20%.

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A milk vendor sells milk at Cost Price but still gains 20%.  [#permalink]

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New post Updated on: 29 Oct 2012, 01:37
3
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

47% (00:55) correct 53% (00:59) wrong based on 70 sessions

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A milk vendor sells milk at Cost Price but still gains 20%. Find the ratio of milk and water in every gallon that he sells.

A. 4:1
B. 5:1
C. 5:2
D. 6:1
E. None of these

Originally posted by chris93 on 28 Oct 2012, 21:48.
Last edited by Bunuel on 29 Oct 2012, 01:37, edited 1 time in total.
Added the answer choices and the OA.
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Re: A milk vendor sells milk at Cost Price but still gains 20%  [#permalink]

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New post 28 Oct 2012, 23:01
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chris93 wrote:
A milk vendor sells milk at Cost Price but still gains 20%. Find the
ratio of milk and water in every gallon that he sells.


Answer choices are missing.

Let the vendor buy 100 L of milk. For him to make 20% profit, he has to turn this 100 L into 120 L without incurring any cost. So he has to mix 20 L of water. So ratio of milk to water is \(\frac{100}{20} = 5\)

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Re: A milk vendor sells milk at Cost Price but still gains 20%.  [#permalink]

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New post 10 Apr 2018, 20:19
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: A milk vendor sells milk at Cost Price but still gains 20%. &nbs [#permalink] 10 Apr 2018, 20:19
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