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6. In a community of 175 persons, 40 read the Times, 50 read the Samachar and 100 do not readany. How many persons read both the papers?A) 10B) 15C) 20D) 25​

Answer»

ANSWER:

SINCE 100 do not read any

n(T∪S)=175−100=75

By set theory

n(T∩S)=n(T)+n(S)−n(T∪S)

=40+50−75=15

Step-by-step explanation:

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