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In a class consisting of 100 students 20 know English and 20 do not know Hindi and 10 know neither English nor Hindi...

+1 vote
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In a class consisting of 100 students 20 know English and 20 do not know Hindi and 10 know neither English nor Hindi. How many students know both Hindi and English?

posted Oct 6, 2015 by anonymous

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4 Answers (Check Answer ▼)





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