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If all boxes of brand X candy are equally priced and all boxes of bra

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If all boxes of brand X candy are equally priced and all boxes of bra  [#permalink]

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New post 31 Oct 2018, 10:58
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  15% (low)

Question Stats:

93% (01:14) correct 7% (01:25) wrong based on 29 sessions

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If all boxes of brand X candy are equally priced and all boxes of brand Y candy are equally priced, what is the price of a box of brand X candy?

(1) The total price of 5 boxes of brand X candy is $4.50 more than the total price of 5 boxes of brand Y candy.
(2) The total price of 5 boxes of brand Y candy is $0.40 more than the total price of 4 boxes of brand X candy.

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Re: If all boxes of brand X candy are equally priced and all boxes of bra  [#permalink]

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New post 31 Oct 2018, 11:08
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Let X and Y be prices of each box respectively.

Stmt 1: 5X = 4.5 + 5Y, can't find X, Insuff.
Stmt 2: 5Y = 0.4 + 4X, can't find Y, Insuff.

Combined: X can be found, since equations are 5X = 4.5 + 5Y and 4X = -0.4 + 5Y, subtract to get X = 4.9, hence suff.

Option C IMO, not sure why OA is D
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Re: If all boxes of brand X candy are equally priced and all boxes of bra  [#permalink]

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New post 31 Oct 2018, 11:14
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Re: If all boxes of brand X candy are equally priced and all boxes of bra   [#permalink] 31 Oct 2018, 11:14
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If all boxes of brand X candy are equally priced and all boxes of bra

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