AP EAMCET2008MathematicsPermutation and Combination
9 balls are to be placed in 9 boxes and 5 of the balls cannot fit into 3 small boxes. The number of ways of arranging one ball in each of the boxes is
Options
- A18720
- B18270
- C17280
- D12780
Correct answer
C. 17280
Step-by-step solution
Required number of arrangements aligned & = ^6 P₅ 4 ! & =720 24 & =17280 aligned