A person can go from place P to Q by 7 different modes of transpor – McqOptions

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1.	A person can go from place P to Q by 7 different modes of transport, but is allowed to return back to P by any mode other than the one used earlier. In how many different ways can he complete the entire journey?
A.	42
B.	30
C.	11
D.	15
Answer» B. 30

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