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rxs0005
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the OA is 11N/12

Can either of you explain how its got I still dont get it

I know the indivdual total for every Q has to be N in essence there are 2N replies totally.
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christoph
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rxs0005
the OA is 11N/12

Can either of you explain how its got I still dont get it

I know the indivdual total for every Q has to be N in essence there are 2N replies totally.


1/3*1/4=1/12. so 1/12 answer "yes" to both questions and 11/12 do not answer "yes" to both questions. draw a venn diagram. the intersection contains 1/12.
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rxs0005
the OA is 11N/12

Can either of you explain how its got I still dont get it

I know the indivdual total for every Q has to be N in essence there are 2N replies totally.


3N/4 could not say YES to Q1.
Of the remaining N/4 , 2/3*N/4 could not say YES for Q2.(typo Q1 earlier)

Hence the total would could not say YES to either Q1 or Q2 is
3N/4 + N/6 = 11N/12.

HMTG.



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