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MHT CET Mathematics question

MathematicsProbabilityMHT CET

If a machine is correctly set up, it produces acceptable items. If it is incorrectly set up, it produces only acceptable items. Past experience shows that of the set ups are correctly done. If after a certain set up, the machine produces acceptable items, then the probability that the machine is correctly setup is

Answer: (D)

Solution

(correct), ; and for two acceptable

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Question ID VK-027665