Question

40 Vidyarthi Ki Ek kaksha mein 25 Hindi bolate hain aur 15 angreji aur Hindi donon bolate Hain Sabhi vidhate donon varshon mein se kam se kam Ek Bhasha avashyakta Hoti Hai Kitni Vidyarthi Keval angreji bolate Hain ​

Answer 1

Answer:

15 Vidyarthi

Step-by-step explanation:

|AUB| = |A|+|B| - |AΠB|

=>40= 25+|B| -15

=>|B| = 30

now only B means

B - A = |B| - |BΠA|

=30-15 =15 Vidyarthis

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