A class of 100 students. 60 know English 80 know hindi and all the student of the class know either Hindi or English or both. Find the number students who mow both the languages.
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Answer:
KNOW ENGLISH=60
KNOW HINDI=80
TOTAL STUDENTS=100
NUMBER OF STUDENT WHO KNOW BOTH LANGUAGES=
(80 + 60) - 100(80+60)−100
140 - 100140−100
then the answer is 40
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