Others Maths Puzzle

There are 10 stations on a railway line.the number of different journey tickets that are required by the authorities is:
option
a)10!
b)90
c)81
d)10

Read Solution (Total 3)

10P2 = 10*9 =90
11 years agoHelpfull: Yes(2) No(0)

the answer is 10
11 years agoHelpfull: Yes(1) No(1)
@Sudipta kumar banarjee- why have you taken 10P2?
11 years agoHelpfull: Yes(0) No(0)

Others Other Question

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