twice on the same trip

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twice on the same trip

by sanju09 » Fri Jul 23, 2010 2:04 am
Amy has to visit towns B and C in any order. The roads connecting these towns with her home are shown on the diagram. How many different routes can she take starting from A and returning to A, going through both B and C (but not more than once through each) and not travelling any road twice on the same trip?
(A) 10
(B) 8
(C) 6
(D) 4
(E) 2

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by outreach » Fri Jul 23, 2010 2:09 am
route no of ways
A - C =2
A -B =1
C - B =2

total =4
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by selango » Fri Jul 23, 2010 2:17 am
8 ways
--Anand--