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GRE Math Challenge #94-market survey showed that 76 percent

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GRE Math Challenge #94-market survey showed that 76 percent [#permalink] New post 09 May 2015, 11:38
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Question Stats:

100% (02:21) correct 0% (00:00) wrong based on 4 sessions
A market survey showed that 76 percent of the visitors at a certain resort came from Pacific or southwestern states. Of these, (2/3) were from California, and 87 percent of the Californians were from southern California. Approximately what percent of the visitors at the resort were from southern California?

(A) 40%
(B) 45%
(C) 50%
(D) 55%
(E) 65%
[Reveal] Spoiler: OA

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Re: GRE Math Challenge #94-market survey showed that 76 percent [#permalink] New post 18 Dec 2017, 08:04
sandy wrote:
A market survey showed that 76 percent of the visitors at a certain resort came from Pacific or southwestern states. Of these, (2/3) were from California, and 87 percent of the Californians were from southern California. Approximately what percent of the visitors at the resort were from southern California?

(A) 40%
(B) 45%
(C) 50%
(D) 55%
(E) 65%


Here Let total visitor be 100

so 76% visitors are pacific or Southwestern State = 76% of 100 = 76 visitor

Now out of 76 visitor 2/3 were from California i.e 2/3 *76 = 51 visitor.

Therefore visitors at the resort from southern California =51 * 87% = 44.37% nearly equal = 45%

Now out of these 87% were from southern California
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Re: GRE Math Challenge #94-market survey showed that 76 percent [#permalink] New post 19 Dec 2017, 18:35
pranab01 wrote:
sandy wrote:
A market survey showed that 76 percent of the visitors at a certain resort came from Pacific or southwestern states. Of these, (2/3) were from California, and 87 percent of the Californians were from southern California. Approximately what percent of the visitors at the resort were from southern California?

(A) 40%
(B) 45%
(C) 50%
(D) 55%
(E) 65%


Here Let total visitor be 100

so 76% visitors are pacific or Southwestern State = 76% of 100 = 76 visitor

Now out of 76 visitor 2/3 were from California i.e 2/3 *76 = 51 visitor.

Therefore visitors at the resort from southern California =51 * 87% = 44.37% nearly equal = 45%

Now out of these 87% were from southern California


Now out of 76 visitor 2/3 were from California i.e 2/3 *76 = 51 visitor. ------> can't NOT be 51
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Re: GRE Math Challenge #94-market survey showed that 76 percent [#permalink] New post 19 Dec 2017, 21:12
Peter wrote:

Now out of 76 visitor 2/3 were from California i.e 2/3 *76 = 51 visitor. ------> can't NOT be 51


Request you to read the question carefully, this is a quest of approximate.

2/3 *76 = 50.6666 and this is approximate to 51.

I hope you are aware of this approach in decimals.
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Re: GRE Math Challenge #94-market survey showed that 76 percent [#permalink] New post 19 Dec 2017, 22:18
pranab01 wrote:
Peter wrote:

Now out of 76 visitor 2/3 were from California i.e 2/3 *76 = 51 visitor. ------> can't NOT be 51


Request you to read the question carefully, this is a quest of approximate.

2/3 *76 = 50.6666 and this is approximate to 51.

I hope you are aware of this approach in decimals.


OK thanks
Re: GRE Math Challenge #94-market survey showed that 76 percent   [#permalink] 19 Dec 2017, 22:18
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GRE Math Challenge #94-market survey showed that 76 percent

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