JEE Main 2022 Mathematics question
A biased die is marked with numbers 2, 4, 8, 16, 32, 32 on its faces and the probability of getting a face with mark n is 1/n. If the die is thrown thrice, then the probability, that the sum of the numbers obtained is 48, is :
Answer: (4)
Solution
The probability of a face marked n is 1/n, so each face marked 32 has probability 1/32 (and the two such faces together 1/16). The sum 48 can be
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