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1. |
Three flags each of different colours are available for a military exercise, Using these flags different codes can be generated by waving_x005F_x000D_I. Single flag of different colours_x005F_x000D_II. Any two flags in a different sequence of colours._x005F_x000D_III. three flags in a different sequence of colours._x005F_x000D_The maximum number of codes that can be generated is. |
A. | 6 |
B. | 9 |
C. | 15 |
D. | 18 |
Answer» D. 18 | |