When six fair coins are tossed simultaneously, in how many of the outcomes will at most three of the coins turn up as heads?
A). 25
B). 41
C). 22
D). 42
2. In how many ways can 3 people be seated in a row containing 6 seats?
5. In how many ways can 5 man draw water from 5 taps if no tap can be used more than once?
9. Find the number of ways in which 5 players out of 8 players can be selected to form a team.
10. 12 people at a party shake hands once with everyone else in the room.How many handshakes took place?