Question:medium

A bag contains \( (n + 1) \) coins. It is known that one of these coins has a head on both sides, whereas the other coins are fair. One of these coins is selected at random and tossed. If the probability that the toss results in heads is \( \frac{7}{12} \), then the value of \( n \) is :

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When solving probability problems, carefully account for the different cases and use the law of total probability to combine the outcomes.
Updated On: May 5, 2026
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The Correct Option is A

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