Engineering
Mathematics
Conditional Probability
Question
In a group of 15 people 7 read French 8 read English while 3 of them read none of them. How many read French and English both ?
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Solution
Since 3 peoples read none of the two subjects there are only 12 people who are reading either one of the two or both It is clear from the diagram that 3 people are studying both French and English
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