There are (n + 1) white and (n + 1) black balls each set numbered 1 to n + 1. The number of ways in which the balls can be arranged in a row so that adjacent balls are of diferent colours, is
| A. | (2n+2) ! |
| B. | (2n+2) ! x 2 |
| C. | (n+1) ! x 2 |
| D. | 2[(n+1) ! ]2 |
Answer : D Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
