Subject
Bank Exam
Topic
Bank Asia Ltd. - Trainee Officer - 2016
A class has 30 students. The class needs to select 3, representatives. In how many ways can be this be done ?
A class has 30 students. The class needs to select 3, representatives. In how many ways can be this be done ?
ক)
400খ)
2050গ)
3040ঘ)
4060Explanation
Solution: প্রশ্নে বলা হচ্ছে যে, একটি শ্রেণীতে 30 জন ছাত্র রয়েছে । ঐ শ্রেণীতে 3 জন প্রতিনিধি নির্বাচিত করতে হলে সেটা কত উপায়ে করা যেতে পারে ? 30 জন ছাত্র থেকে 3 জন প্রতিনিধিকে নিম্নোক্ত উপায়ে বাছাই করা যায় । 30 c 3 = = 4060Related questions
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