A bag contains n coins of which five of them are counterfeit with heads on both sides and the rest are fair coins. If one coin is selected from the bag and tossed the probability of getting head is `(5)/(8)` then n=

A bag contains 16 coins of which two are counterfeit with heads on both sides. The rest are fair coins. One is selected at random from the bag and tossed. The probability of getting a head is

A bag contains 14 coins of which two are counter feet with heads on the both sides,the rest are fair coins.One is selected at random from the bag and tossed,find the probability of getting a head is-

15 coins are tossed , the probability of getting heads will be

A bag contains n+1 coins.If is known that one of these coins shows heads on both sides, whereas the other coins are fair.One coin is selected at random and tossed.If the probability that toss results in heads is 7/12, then find the value of n.

Find the probability of getting head in a toss of one coin:

A coin is tossed twice,the probability of getting head both the xx is

There are 12 unbiased coins in a bag.Out of them 4 coins have head on both the sides.One coin is selected from the bag at random and tossed.The probability of getting a head is