Answer:
24 ways.
Step-by-step explanation:
If i have n different trophies to arrange on top shelf of a book case then the number of ways in which we can arrange the trophies will be
= n!
When n = 4
Then number of ways in which we can arrange the books
= 4!
= 4 × 3 × 2 × 1
= 24
Therefore, answer is 24 ways.
