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On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If

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On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If  [#permalink]

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New post 19 Aug 2018, 09:10
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A
B
C
D
E

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  15% (low)

Question Stats:

82% (01:29) correct 18% (01:58) wrong based on 38 sessions

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Re: On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If  [#permalink]

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New post 19 Aug 2018, 09:30
Bunuel wrote:
On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If there are 300 more zebras than giraffes, how many giraffes are on the wildlife preserve?

(A) 1,550
(B) 1,850
(C) 2,150
(D) 2,450
(E) 2,750



Lets assume , #giraffes=\(37x\) and #zebras=\(43x\). Hence the Q-stem says \((43-37)x\) i.e. \(6x =300\)
Hence #giraffes=\(37x\)= \(\frac{300}{6}*37\) =\(1850\) Hence Ans B
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Re: On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If  [#permalink]

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New post 19 Aug 2018, 10:47
Bunuel wrote:
On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If there are 300 more zebras than giraffes, how many giraffes are on the wildlife preserve?

(A) 1,550
(B) 1,850
(C) 2,150
(D) 2,450
(E) 2,750


This question can be solved by backsolving i.e. using the answer choices.
Start with C, 2150:2150+300 = 2150:2450 = 43:49
Check B, 1850:1850+300=1850:2150=37:43
Answer B.
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Re: On a wildlife preserve, the ratio of giraffes to zebras is 37 : 43. If   [#permalink] 19 Aug 2018, 10:47
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