A purse contains 3 silver and 6 copper coins a second purse contains 4 silver and 3 copper coins.If a coin is drawn at random from one of the two purses,find the probability that it is a silver coin.

A purse contains 2 silver and 4 copper coins. A second purse contains 4 silver and 3 copper cons. If a coin is pulled at random from one of the two purses, what is the probability that it is a silver coin?

A purse contains 4 silver and 5 copper coins. A second purse contains 3 silver and 7 copper coins. If a coin is taken out at random from one of the purses, what is the probability that it is a copper coin ?

Given three identical Boxes A, B and C, Box A contains 2 gold and 1 silver coins, Box B contains 1 gold and 2 silver coins and Box C contains 3 silver coins. A person chooses a Box at random and takes out a coin. If the coin drawn is of silver, find the probability that it has been drawn from the Box which has the remaining two coins also of silver.

One purse (X) contains one white and three blue balls, another purse contains 2 white and 4 blue balls, and third purse (Z) contains 3 white and 1 blue balls. If a ball is drawn from one purse selected at random. Find the chance that it is white.

In a simultaneous throw of two coins find the probability of at least one tail .

In a simultaneous throw of two coins find the probability of two heads ,

Three coins are tossed. If one of them shows tail, then find the probability that all three coins show tail.

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

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

A coin is tossed two times. Find the probability of getting atmost one head.