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From (5) different cities a trip needs a starting city and an ending city. They must be different and (2) different intermediate stops are also chosen from the remaining cities. If order matters then how many trips are possible?

Answer and explanation

Correct answer: (5 \times 4 \times 3 \times 2=120)

The (4) ordered positions have (5,4,3,2) choices. When order matters use the multiplication principle.

Related tags

CountingTravelOrderedFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq

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