A has 3 shares in a lottery containing 3 prizes and 9 blanks, B has 2 shares in a lottery containing 2 prizes and 6 blanks. Compare their chances of success

In a lottery, there are 10 prizes and 20 blanks, find the probability of getting a prize.

X and Y play a game of tossing all the coins in their pockets. X has 2 fair coins and Y has 3 fair coins. It is the decided that whoever throws all heads, stands as the winner. Compare their chances of winning the game.

A bag A contains 3 white and 2 black balls and another bag B contains 2 white and 4 black balls. A bag and a ball out of it are picked at random. What is the probability that the ball is white?

A box B_1 contains 1 white ball, 3 red balls and 2 black balls. Another box B_2 contains 2 white balls, 3 red balls and 4 black balls. A third box B_3 contains 3 white balls, 4 red balls and 5 black balls.If 1 ball is drawn from each of the boxes B_1 , B_2 and B_3 , then the probability that all 3 drawn balls are of the same colour , is

A box B_(1) contains 1 white ball, 3 red balls, and 2 black balls. An- other box B_(2) contains 2 white balls, 3 red balls and 4 black balls. A third box B_(3) contains 3 white balls, 4 red balls, and 5 black balls. If 2 balls are drawn (without replecement) from a randomly selected box and one of the balls is white and the other ball is red the probability that these 2 balls are drawn from box B_(2) is

A person buys a lottery ticket in 50 lotteries, in each of which his chance of winning and prize is 1/100. What is the probability that he will win a prize. (a) at least once (b) exactly once

A person buys a lottery ticket in 50 lotteries, in ech of which his chance of winning a prize is 1/100. What is the probability that he will a prize (a) exactly once (b) atleast once ?

In a lottery 10,000 tickets are sold and ten equal prizes are awarded.What is the probability of not getting a prize if you buy(ii) 2 tickets.

Calculate the molarity of a solution containing 2.3 moles of solute dissolved in 4.6 litres.