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JEE Main Mathematics question

MathematicsPermutations and CombinationsJEE Main

There are two urns. Urn has distinct red balls and urn has distinct blue balls. From each urn two balls are taken out at random and then transferred to the other. Then number of ways in which this can be done, is

Answer: (D)

Solution

Two balls are chosen from urn in ways. Two balls are chosen from urn in

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Question ID VK-020576