Find the number of ways of preparing a chain with 5 different coloured beads ?
A). 18
B). 24
C). 12
D). 30
If there are 12 persons in a party and each of them shakes hands with each other, how many handshakes do happen in the party?
A). 77
B). 66
C). 44
D). 55
In a monthly test, the teacher decides that there will be there questions, one each from ex. 7, 8 and 9 of the text book. There are 12 questions in ex-7 , 18 in ex-8 and 9 in ex-9. In how many ways ca
A). 1944
B). 2094
C). 1894
D). 2194
139 person have signed for an elimination tournament. All players are to be paired up for the first round but because 139 is an odd number one player gets a bye, which promotes him to the second round
A). 136
B). 137
C). 138
D). 139
2 Men and 1 women board a bus in which 5 seats are vacant, one of these 5 seats is reserved for ladies. A women may or may not sit on the seat reserved for ladies . In how many different ways can the
A). 15
B). 36
C). 48
D). 60