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If 8 tigers were added to the zoo, the new ratio of lions to tigers

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If 8 tigers were added to the zoo, the new ratio of lions to tigers  [#permalink]

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New post 10 Nov 2017, 18:16
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Difficulty:

  55% (hard)

Question Stats:

69% (02:24) correct 31% (02:41) wrong based on 44 sessions

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If 8 tigers were added to the zoo, the new ratio of lions to tigers would be 4 to 3. How many bobcats are at the zoo?

A. 4
B. 8
C. 12
D. 24
E. 48

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Re: If 8 tigers were added to the zoo, the new ratio of lions to tigers  [#permalink]

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New post 10 Nov 2017, 19:00
Gnpth wrote:
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Zoo.PNG

If 8 tigers were added to the zoo, the new ratio of lions to tigers would be 4 to 3. How many bobcats are at the zoo?

A. 4
B. 8
C. 12
D. 24
E. 48




Let the common ratio of animals be x..
Tigers = 8x+8 and lions =32x
So ratio = \(\frac{8x+8}{32x}=\frac{3}{4}......32x+32=96x.....x=1/2\)

Number of bobcats. = 24*1/2=12

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2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


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Re: If 8 tigers were added to the zoo, the new ratio of lions to tigers &nbs [#permalink] 10 Nov 2017, 19:00
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If 8 tigers were added to the zoo, the new ratio of lions to tigers

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