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Before expansion, a zoo had 343 birds in 7 cages. If, after the expans

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Before expansion, a zoo had 343 birds in 7 cages. If, after the expans  [#permalink]

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New post 16 Nov 2018, 09:46
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (01:31) correct 19% (01:07) wrong based on 58 sessions

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Before expansion, a zoo had 343 birds in 7 cages. If, after the expansion was complete, there were 719 birds in 11 cages, what was the approximate percent increase in the average number of birds per cage?

a. 11%

b. 15%

c. 24%

d. 33%

e. 50%

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Re: Before expansion, a zoo had 343 birds in 7 cages. If, after the expans  [#permalink]

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New post 16 Nov 2018, 09:59
initial no of birds per cage= 343/7 = >59
no of birds per cage after expansion = 719/11 ~> 65

%increase=65-59/59 *100 ~>> 11% option A
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Re: Before expansion, a zoo had 343 birds in 7 cages. If, after the expans  [#permalink]

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New post 16 Nov 2018, 10:09
ju9549 wrote:
initial no of birds per cage= 343/7 = >59
no of birds per cage after expansion = 719/11 ~> 65

%increase=65-59/59 *100 ~>> 11% option A


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Re: Before expansion, a zoo had 343 birds in 7 cages. If, after the expans  [#permalink]

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New post 30 Nov 2018, 19:22
Before: 343/7 = 49 birds/ cage
After: 719/11 = 65 birds/cage
Number increased = 65 - 49 = 16
% increase = 16/49
49 is approximately 50 => 33% => D
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Re: Before expansion, a zoo had 343 birds in 7 cages. If, after the expans &nbs [#permalink] 30 Nov 2018, 19:22
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Before expansion, a zoo had 343 birds in 7 cages. If, after the expans

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