To fill a number of vacancies, a company must hire 3 officers from 6 applicants, and 2 managers from 4 applicants. What is the total number of ways in which the company can make its selection?
Created: 6 years ago |
Updated: 1 year ago
best des
এটি permutation এর অঙ্ক। 3 জন officer 6 জন থেকে = 6P3 এবং 2 জন manager 4 জন থেকে = 4P2; total = 6P3 + 4P2 = 132
update: (11-02-23) it is combination problem. Since the order of vacancies doesn't matter.
6C3 = 20 and 4C2= 6, 20 × 6 = 120 is the right answer. Given ans is wrong
Md Azizur Rahman
Founder of Satt
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