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# A campus organization is selling tee shirts to raise money for a chari

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Math Expert
Joined: 02 Sep 2009
Posts: 58434
A campus organization is selling tee shirts to raise money for a chari  [#permalink]

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20 Mar 2018, 06:48
00:00

Difficulty:

35% (medium)

Question Stats:

80% (01:12) correct 20% (01:17) wrong based on 20 sessions

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A campus organization is selling tee shirts to raise money for a charity. What amount does the organization expect to donate to the charity?

(1) The organization expects to sell 1,000 tee shirts.
(2) The organization sells 500 more tee shirts than expected, for a total donation of \$30,000 to the charity

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RC Moderator
Joined: 24 Aug 2016
Posts: 789
GMAT 1: 540 Q49 V16
GMAT 2: 680 Q49 V33
Re: A campus organization is selling tee shirts to raise money for a chari  [#permalink]

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20 Mar 2018, 08:00
1
Lets assume # T-shirts expected to sell = T , Price of each = p Hence, expected donation = Tp

(1) T = 1000 ; no info provided for p -------------->NS
(2) # T-shirts solds more than expected = t=500, Amont of money donated = 30000= (T+t)p = (T+500)p; no info provided for p & T -------------->NS
(1)+(2) T = 1000 , t=500, Hence 30000=(100+500)p => p =20
Hence 1st expected donation 20*1000=20000--------->S

Hence, Option C.
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Please let me know if I am going in wrong direction.
Thanks in appreciation.
Re: A campus organization is selling tee shirts to raise money for a chari   [#permalink] 20 Mar 2018, 08:00
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