Question

In how many ways 4 books can be chosen from 8 different books and be arranged in 4 spaces on a bookshelf? ​

Answer 1

Answer:

hope this helps

Step-by-step explanation:

3*2 * 1 = 24 ways . It is called arrangement or permutations, while if you need to group some objects it is called combination and there we need to consider unique groups only.