There are 6 trains running between Indore and Bhopal . In how many ways can a man go from Indore to Bhopal and return by a different train ?
The correct Answer is:=30
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Knowledge Check
- Question 1 - Select One
There are 15 buses running between Lucknow and Kanpur. In how many ways can a man go to Kanpur and return by a different bus?
A280B310C240D210
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