A man buys some juice boxes. The boxes are from two : DS Archive
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# A man buys some juice boxes. The boxes are from two

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Manager
Joined: 16 Apr 2009
Posts: 243
Schools: Ross
Followers: 3

Kudos [?]: 83 [0], given: 10

A man buys some juice boxes. The boxes are from two [#permalink]

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11 Jun 2009, 16:12
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A man buys some juice boxes. The boxes are from two different brands. How many boxes of brand A did the man buy if he bought $5.29 worth of boxes? (1) The price of brand A box is$0.81 and the price of brand B box is $0.31 (2) The total amount of boxes is 9 Please explain _________________ Keep trying no matter how hard it seems, it will get easier. Manager Joined: 08 Feb 2009 Posts: 146 Schools: Anderson Followers: 3 Kudos [?]: 49 [0], given: 3 Re: juice boxes [#permalink] ### Show Tags 11 Jun 2009, 16:48 Answer is A (1) There are 5 Brand A boxes and 4 brand B boxes. This is the only condition that satisfies the total to be$5.29.

(2)
Doesn't give much info about brand A boxes. Thus, INSUFFICIENT.

I haven't figured out a way to solve such questions other than to work out keep plugging in numbers.

The way I did it is observe the last digits of the numbers, which are 1, 1 and 9.

Thus, the total number of boxes should be a multiple of 9. another easy way is to take note of statement B's info, although we don't use it directly while pluggin-in.

if anybody knows easier methods, please share.
Re: juice boxes   [#permalink] 11 Jun 2009, 16:48
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