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30 Aug 2017, 23:22
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At a pet store, the ratio of cats to dogs is 7:3, and the ratio of birds to dogs is 5:6. If the pet store only has birds, cats, and dogs, then birds represent what percent of all animals at the store?
A. 16.67%
B. 20%
C. 22.5%
D. 25%
E. 28.33%
A. 16.67%
B. 20%
C. 22.5%
D. 25%
E. 28.33%
Luckisnoexcuse
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30 Aug 2017, 23:29
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Bunuel
At a pet store, the ratio of cats to dogs is 7:3, and the ratio of birds to dogs is 5:6. If the pet store only has birds, cats, and dogs, then birds represent what percent of all animals at the store?
A. 16.67%
B. 20%
C. 22.5%
D. 25%
E. 28.33%
A. 16.67%
B. 20%
C. 22.5%
D. 25%
E. 28.33%
Cat : Dog : Bird
14: 6 : 5
5/25 = 20%
B
31 Aug 2017, 02:33
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Given :
C/D =7/3 and B/D =5/6
To find ratio of all we have make D value same in both: C/D = 7/3 = 14/6
therefore C:D:B = 14:6:5
Total no of animals = 14x+6x+5x = 25x
Total no. of Birds =5x
% of Birds = 5x/25x * 100 = 20%
Answer: B
C/D =7/3 and B/D =5/6
To find ratio of all we have make D value same in both: C/D = 7/3 = 14/6
therefore C:D:B = 14:6:5
Total no of animals = 14x+6x+5x = 25x
Total no. of Birds =5x
% of Birds = 5x/25x * 100 = 20%
Answer: B
