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Different route on the way back

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There are three different routes connecting city A and city B. How many ways can a round trip be made from Ato B and back? How many ways if it is desired to take a different route on the way back?

Reference no: EM131083827

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Different route on the way back : There are three different routes connecting city A and city B. How many ways can a round trip be made from Ato B and back? How many ways if it is desired to take a different route on the way back?
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