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In a recent study, 90 people were surveyed about what type o
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24 Feb 2020, 11:34
24 Feb 2020, 11:34
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In a recent study, 90 people were surveyed about what type of animal they owned as a pet. Everyone surveyed owned at least one animal. The results are shown in the Venn diagram. What percent of the respondents said they had a dog and a cat but no birds?
A. 15%
B. 17%
C. 30%
D. 46%
E. 90%
Kudos for the right answer and explanation
Re: In a recent study, 90 people were surveyed about what type o
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25 Feb 2020, 00:44
25 Feb 2020, 00:44
1
90-(29+4+2+9+17+14)=15(only dogs and cats)
thus,(15/90)*100 =100/6=16.67%=17%(approximately).
Hence, B
thus,(15/90)*100 =100/6=16.67%=17%(approximately).
Hence, B
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Joined: 20 Jun 2019
Posts: 181
Given Kudos: 41
GRE 1: Q160 V161
GRE 2: Q165 V159
Re: In a recent study, 90 people were surveyed about what type o
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09 Apr 2020, 06:08
09 Apr 2020, 06:08
1
There are 90 people in total but elements in the set add upto 75. This can only mean that the remaining 15 are either/or D'C'B' or DCB'. Since we are given that everyone surveyed owned at least one animal this means neither dogs, cats and birds (D'C'B')=0 which means we can say 90–75=15=DCB'. Hence our required percentage is 15/90*100≈17%.
