Q. There are 5 white, 4 yellow, 3 green, 2 blue and 1 red ball. The balls are all identical except for colour. These are to be arranged in a line in 5 places. Find the number of distinct arrangements
Permutations and Combinations
Solution:
$5 \rightarrow W $
$4 \rightarrow Y $
$3 \rightarrow 9 $
$2 \rightarrow B $
$1 \rightarrow R$
