Subject
Bank Exam
Topic
City Bank Ltd. - Probationary Officer - 2016
70 students are enrolled in Management, Accounting and Marketing. 40 students are in Management, 35 are in Accounting, and 30 are in Marketing. 15 students are enrolled in all three courses. How many of the students are enrolled in exactly two of the courses ?
70 students are enrolled in Management, Accounting and Marketing. 40 students are in Management, 35 are in Accounting, and 30 are in Marketing. 15 students are enrolled in all three courses. How many of the students are enrolled in exactly two of the courses ?
ক)
8খ)
5গ)
6ঘ)
9Explanation
Solution: অনুবাদঃ 70 জন ছাত্রছাত্রী Management, Accounting এবং Marketing এ ভর্তি হলো । 40 জন Management, 35 জন Accounting এবং 30 জন Marketing এ ভর্তি হলো । 15 জন ছাত্রছাত্রী সবগুলোতে ভর্তি হলো । কোর্সগুলোর মধ্যে ঠিক দুটি কোর্সে ভর্তি হলো কতজন ছাত্রছাত্রী ? যেহেতু, 40 জন Management এ ভর্তি হলো এবং 15 জন ছাত্রছাত্রী সবগুলোতে ভর্তি হলো । শুধু Management এর (35 - 15) = 20 জন একইভাবে, শুধু Accounting এর (40 - 15) = 25 জন এবং শুধু Marketing এর (30 - 15) = 15 জন । এছাড়াও ৩টি বিষয়ই নেয় = 15 জন Management, Accounting এবং Marketing এর মোট ছাত্র সংখ্যা = 25 + 20 + 15 + 15 = 75 জন । দেয়া আছে, 70 জন ছাত্রছাত্রী Management, Accounting এবং Marketing এ ভর্তি হলো । Exactly two subject নেয় = 75 - 70 = 5 জন ।Related questions
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