A Kiddy bank contains hundred 50p coins, fifty ₹1 coins, twenty ₹2 coins and ten ₹5 coins. Ifit is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (i) will be a 50 p coin? (ii) will not be a ₹5 coin?

A coin is tossed twice, what is the probability that etleast one tail occurs?

A coin is tossed twice, what is the probability that at least one tail occurs?

Ten coins are tossed. Then what is the probability of getting atleast 8 heads ?

A coin is tossed four times. The probability that atleast one heads turns up is

A purse contains 6 Silver coins and 3 Gold coins. Another purse contains 4 Silver coins and 5 Gold coins. A purse is selected at random and a coin is drawn from it. It's known that a coin is Gold then what is the probability that a Gold coin is selected from another (II^(nd)) purse?

Given three identical boxes I, II and III, each containing two coins. In box I, both coins are gold coins, in box II, both are silver coins and in the box III, there is one gold and one silver coin. A person chooses a box at random and takes out a coin. If the coin is of gold, what is the probability that the other coin in the box is also of gold?

A bag contains n+1 coins. It 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 ndot

A bag contains (2n + 1) coins. It is known that n of these coins have a head on both sides whereas the rest of the coins are fair. A coin is picked up at random from the bag and is tossed. If the probability that the toss results in a head is (31)/(42) , then determine the value of n.

Harpreet tosses two different coins simultaneously (say, one is of ₹ 1and other of ₹2.) What is the probability that she gets at least one heads?

A fair coin with 1 marked on one face and 6 on the other and a fair die are both tossed. Find the probability that the sum of numbers that turn up is (i0 9ii) 12.