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At the bakery, Lew spent a total of $6.00 for one kind of

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Manager
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Joined: 05 Jan 2009
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At the bakery, Lew spent a total of $6.00 for one kind of [#permalink] New post 07 Apr 2009, 09:57
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C
D
E

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At the bakery, Lew spent a total of $6.00 for one kind of cupcake and one kind of doughnut. How many doughnu did he buy?
(1) The price of 2 doughnuts was $0.10 less than the price of 3 cupcakes.
(2) The average (arithmetic mean) price of 1 doughnut and 1 cupcake was $0.35.
o Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
o Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.0 BOTH 0 statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
o EACH statement ALONE is sufficient.
o Statements (1) and (2) TOGETHER are NOT sufficient.
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Re: GMATprep:DS [#permalink] New post 10 Apr 2009, 08:39
E.
$x#c+$y#d=6

d=?

Each statement by itself is not suff.

1&2 together:
0.3c +0.4d=6
or
3c+4d=60

The above implies more than 1 potential value for d:
E.g. d=3, c=16 or d=6, c=12
Hence, E.
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Re: GMATprep:DS [#permalink] New post 13 Apr 2009, 17:41
4 variables 3 eqns Ans E.
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Re: GMATprep:DS [#permalink] New post 13 Apr 2009, 18:56
From stmnt 1 it's possible to figure out the price per cupcake, but that's not enough.
stmnt2 - just the sum of prices.
Combining does not help.

Answer: E.
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Re: GMATprep:DS [#permalink] New post 25 Jan 2010, 19:51
Looking into the question it seems as if one kind of cup cake and one kind of donut refers to 1 cup cake and 1 Donut.
In that case we would get 1C+1D=6.

How is it by the wording we can be sure that one kind of cup cake refers to more than one cup cake.

Please clarify
Re: GMATprep:DS   [#permalink] 25 Jan 2010, 19:51
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