A class photograph has to be taken. The front row consists of 6 girls who are sitting. 20 boys are standing behind. The two corner positions are reserved for the 2 tallest boys. In how many ways can t
A). 6! � 1440
B). 18! � 1440
C). 18! �2! � 1440
D). None of these
The letter of the word LABOUR are permuted in all possible ways and the words thus formed are arranged as in a dictionary. What is the rank of the word LABOUR?
A). 242
B). 240
C). 251
D). 275
Find the number of ways in which 8064 can be resolved as the product of two factors?
A). 22
B). 24
C). 21
D). 20
How many ways can 4 prizes be given away to 3 boys, if each boy is eligible for all the prizes?
A). 256
B). 24
C). 12
D). None of these
10 students are to be seated in two rows equally for the Mock test in a room. There are two sets of papers, Code A and Code B. each of two rows can have only one set of paper but different that from o
A). 2775600
B). 125600
C). 7257600
D). 1200560