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# How many sandwiches were sold today at a certain sandwich stand?

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Math Expert
Joined: 02 Sep 2009
Posts: 53066
How many sandwiches were sold today at a certain sandwich stand?  [#permalink]

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05 Sep 2017, 22:31
00:00

Difficulty:

55% (hard)

Question Stats:

68% (01:28) correct 32% (00:53) wrong based on 36 sessions

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How many sandwiches were sold today at a certain sandwich stand?

(1) The number of sandwiches sold yesterday is 12 fewer than half of that sold today.
(2) The number sold today is 24 more than twice the number sold yesterday.

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Joined: 02 Jul 2017
Posts: 293
Concentration: Entrepreneurship, Technology
GMAT 1: 730 Q50 V38
Re: How many sandwiches were sold today at a certain sandwich stand?  [#permalink]

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05 Sep 2017, 22:50
Find number of sandwiches sold today?

(1) The number of sandwiches sold yesterday is 12 fewer than half of that sold today.
Let sandwiches sold yesterday = y
sandwiches sold today = t

so given y = (1/2)*t -12
2y=t-24
Not sufficient

(2) The number sold today is 24 more than twice the number sold yesterday.
give: t= 2*y+24
Its same as details given in point 1.
Not sufficient

As by both we don't get exact value of number of sandwiches.

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Re: How many sandwiches were sold today at a certain sandwich stand?  [#permalink]

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05 Sep 2017, 23:32
Bunuel wrote:
How many sandwiches were sold today at a certain sandwich stand?

(1) The number of sandwiches sold yesterday is 12 fewer than half of that sold today.
(2) The number sold today is 24 more than twice the number sold yesterday.

let the no. of sandwiches sold today be x

(1) sold yesterday = (x/2)-12
not sufficient

(2) sold yesterday = (x-24)/2
not sufficient

on combining

(x/2) - 12 = (x-24)/2
x-24 =x-24
not sufficient

E
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Re: How many sandwiches were sold today at a certain sandwich stand?  [#permalink]

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10 Oct 2018, 13:53
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Re: How many sandwiches were sold today at a certain sandwich stand?   [#permalink] 10 Oct 2018, 13:53
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