Answer:
If each fish tank must have at least one pebble, the many different ways that Mark can put the pebbles in the tanks is:
60.
Step-by-step explanation:
Permutations nPr Calculator
P(n,r)= n!
(n−r)! = ?
n (objects) = 5
r (sample) = 3
Answer:
P(n,r)=P(5,3)
= 5!
/(5−3)!
= 60
The result shows that Mark can put the 5 pebbles in the 3 fish tanks in 60 different ways, if each fish tank must have at least one pebble. Using the permutation calculator, the number of ways is calculated to be 60 ways.
