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On her vacations Veena visits four citie...

On her vacations Veena visits four cities A, B, C and D in a random order. What is the probability that she visits: a. A before B? b. A before B and B before C? c. A first and B last? d. A either first or second? e. A just before B?

Text Solution

Verified by Experts

The correct Answer is:
(i)`1/2` (ii) `1/6`
(iii() `1/12` (iv) `1/2` (v) `1/4`
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