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JEE Main Mathematics question

MathematicsPermutations and CombinationsJEE Main

Between two junction stations and , there are intermediate stations. Find the number of ways in which a train can be made to halt at of these stations so that no two of these are consecutive.

Answer: 126

Solution

The stations where the train does not halt form a line with gaps (including both ends). The

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Question ID VK-020866