Question

find the total number of ways to put 7 identical apples into 4 identical packages so that each package has at least one apple?​

Answer 1

Step-by-step explanation:

n = 7

r = 4

nPr =

=> n!/(n-r)!

=> 7!/(7-4)!

=> 7×6×5×4×3!/3!

=> 7×6×5×4

=> 840

Hence, the number of ways is 840