In a coaching institute, every studentis selected in atleast one of th – McqOptions

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1.	In a coaching institute, every studentis selected in atleast one of the exam i.e. banking exam, and staff selection exam . 40 students are selected in the banking exam, 30 students are selected in the staff selection exam and 20 students are selected in both the examinations. How many students are there in the institute?
A.	45
B.	55
C.	50
D.	40
Answer» D. 40

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