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Option 2 : 40
Given,
Total number of students in the class = 120
Number of students who like either Hindi or English = 100
Number of students who like Hindi = 75
Number of students who like English = 65
Calculation:
Here let set A be Hindi and set B be English
A = 75 and B = 65
⇒ A ∩ B = 100
⇒ A ∪ B = 75 + 65 - 100
⇒ A ∪ B = 40
∴ Thus number of students who like both subjects Hindi and English is 40.
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