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** Q 2475245166. ** A bag contains 12 coins. One is selected at random from the bag and tossed.

I. If 4 coins are counterfeit with tails on both sides and rest are fair coins, then what is the probability of getting a tail?

II. If 2 coins are counterfeit with tails on both sides and rest are fair coins then what is the probability of getting a head?

**IBPS-CLERK 2017 Mains **