Number of Railway Journey Tickets
CMAT 2024 · Quantitative Techniques & Data Interpretation · Easy · Modern Math
There are 10 stations on a railway line. The number of different journey tickets that are require by the authorities , is
- A.
92
- B.
90
- C.
91
- D.
93
Answer
B
Explanation
A journey ticket specifies an origin and a destination. Number of ways to choose origin and destination .
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