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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

In a class of 82 students 46 are taking French 25, are taking German and 11 students are taking both French and German. How many students are not enrolled in either course?

A. 11
B. 18
C. 22
D. 24
E. none of these
Explanation: To find out the number of students that are taking enrolled in one or both the courses, we can use the formula for union of sets: \(46+25-11=60\). \(82-60=22\) (Ans.)