JEE Advanced 2022JEE Adv 2022 Paper 2, Paper 2MathematicsHardUnclassified (maths)
Consider 4 boxes, where each box contains 3 red balls and 2 blue balls. Assume that all 20 balls are distinct. In how many different ways can 10 balls be chosen from these 4 boxes so that from each box at least one red ball and one blue ball are chosen?