If a person wants to go from A to I, by travelling through the least number of cities, then how many ways are available to him?
A
4
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B
6
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C
8
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D
None of these
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Solution
The correct option is B 6 There are 6 ways in which a person can go from A to I, by travelling through least numbers of sites. is ABCFI, ABEFI, ABEHI, ADEFI, ADEHI, ADGHI