JEE Main 202224 Jun, Morning shiftMathematicsHardStatistics and Probability258× since 2002
Bag A contains 2 white, 1 black and 3 red balls and bag B contains 3 black, 2 red and n white balls. One bag is chosen at random and 2 balls drawn from it at random, are found to be 1 red and 1 black. If the probability that both balls come from Bag A is , then n is equal to __________.