Question

Let k be the number of ways of distribution of 5 identical red coloured balls and 7 identical blue coloured balls
k
to 4 persons such that everyone gets atleast one ball, then the value of is equal to
1990​

Answer 1

Step-by-step explanation:

red ball - 5

blue ball - 7

balls - red ball+ blue ball

- 5+7

- 12

so that ,

it distribute in 4 persons

- 12/4

-3