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07 Apr 2009, 10:57
2
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Difficulty:

65% (hard)

Question Stats:

50% (03:30) correct 50% (01:13) wrong based on 50 sessions

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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 doughnuts 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. [Reveal] Spoiler: OA Last edited by Bunuel on 27 Jul 2015, 14:51, edited 1 time in total. Renamed the topic, edited the question and added the OA. Director Joined: 29 Aug 2005 Posts: 860 Re: At the bakery, Lew spent a total of$6.00 for one kind of [#permalink]

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10 Apr 2009, 09:39
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.
Current Student
Joined: 13 Jan 2009
Posts: 366
Location: India

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13 Apr 2009, 19:56
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.

Intern
Joined: 04 Dec 2009
Posts: 21

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14 Oct 2016, 10:06
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