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  • In a class 60% passed their Physics examination and 58% passed in mathematics . Atleast what percentage of student passed both their Physics and Mathematics Examination?

In a class 60% passed their Physics examination and 58% passed in mathematics . Atleast what percentage of student passed both their Physics and Mathematics Examination?

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Solution:

\ n(P)=60 ; n(M)=58; n(Pcup M)=100 \ \Rightarrow n(Pcup M)=n(P)+n(M)-n(Pcap M)\ \Rightarrow 100=60+58-n(Pcap M)\ \Rightarrow n(Pcap M)=18

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Deependra Verma

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