Discuss with colleagues and IITians
4 balls are to be selected from a group of 11 bolls. 5 of them are of type A, 2 of them are type B, 2 are of type R, one of type K and one of type D.
1)In how many ways we can select 4 balls out of these 11 balls?
2)In how many ways we can arrange 4 balls out of these 11 balls in a line?
4 balls are to be selected from a group of 11 bolls. 5 of them are of type A, 2 of them are type B, 2 are of type R, one of type K and one of type D.
1)In how many ways we can select 4 balls out of these 11 balls?
2)In how many ways we can arrange 4 balls out of these 11 balls in a line?
