In a certain lottery ticket 10000 tickets are sold and 10 equal prizes are awarded.
What is the probability of not getting a prize,if you buy2 tickets.

In a certain lottery ticket 10000 tickets are sold and 10 equal prizes are awarded .What is the probability of not getting a prize,if you buy 1 ticket.

In a certain lottery ticket 10000 tickets are sold and 10 equal prizes are awarded. What is the probability of not getting a prize,if you buy 10 tickets.

A person buys a lottery ticket in 50 lotteries in each of which his chance of winning prize is 1/100 what is the probability that he will win a prize at least twice.

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

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

In a lottery of 50 tickets numbered from 1 to 50,two tickets are drawn simultaneously.Find the probability that :None of the tickets drawn has prime number.

In a lottery of 50 tickets numbered from 1 to 50,two tickets are drawn simultaneously.Find the probability that : Both the tickets drawn have prime numbers.

In a lottery, a person chosen six different natural numbers from 1 to 20 and if these six number match with six numbers already fixed by the lottery committee, he wins the prize. What is the probability of winning the prize in the game (order of the numbers is not important)

Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random. What is the probability that the ticket has a number which is a multiple of 3 or 7 ?

In a school, total number of students in 10 A division is equal to the total number of students in 10 B. One students is to be selected from each division. Number of boys in 10A is 20. The probability of selecting a boy from 10 A is 2/5 and that of from 10 B is 3/5 .What is the probability of selecting a girl from 10A?