1.
The number of committees of 5 persons consisting of at least one female member, that can be formed from 6 males and 4 females, is
2.
The number of ways that 8 beads of different colures be string as a necklace, is
3.
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