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1. |
A new flag is to be designed with six vertical stripes using some or all of the colour yellow, green,blue and red. Then, the number of ways this can be made such that no two adjacent stripes have the same colour is |
A. | 12 x 81 |
B. | 16 x 192 |
C. | 20 x 125 |
D. | 24 x 216 |
Answer» B. 16 x 192 | |