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Question

A wooden cask contains some tools i.e. exactly 12 nuts and 24 bolts. (13)rd of each of these are defective. If 2 tools are picked up one after the other without replacement, then what is the probability that both are not defective?

A
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C
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Solution

The correct option is C

Out of the 12 nuts, 4 are defective and out of the 24 bolts, 8 are defective the probability of picking up both non-defective tools = 2436 × 23135 = 49105


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