Probability Tes...

A bag contains 6 white and 4 black balls. A man pulls out 2 balls at random. The probability that they are of the same colour is

The probability of having 53 Mondays in a year is

The probability that a card drawn from a pack of 52 cards will be a diamond or a king is

A natural number is chosen at random from among the first 500. The probability of it being divisible by 3 or 5 is

Three dice are thrown together. The probability of getting a total of at least 6 is

The probability of getting more than seven when a pair of dice is thrown is

A card is drawn at random from a pack of 52 cards. The probability of getting a red card or an ace is

If a fair coin is tossed twice, what is the probability of getting heads in both the trials?

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected is

A bag contains 9 red and 6 white balls. Three balls are drawn at random. The probability that one ball is red and two balls are white is

A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is

Tickets numbered from 1 to 25 are mixed up together and a ticket is drawn at random. What is the probability that the drawn ticket has a prime number?

A card is drawn from a well-shuffled pack of 52 cards. The probability of getting a queen of club or king of heart is

A bag contains 8 white and 5 red balls. Three balls are drawn at random. What is the probability that all the drawn balls are white?

The probability that a leap year selected at random will contain 53 Sundays is

In a lottery of 50 tickets numbered 1 to 50, two tickets are drawn simultaneously. The probability that both the tickets drawn have prime numbers is

Four cards are drawn at random from a pack of 52 cards. The probability of getting all the four cards of the same number is 

N cadets have to stand in a row. If all possible permutations are equally likely, the probability of two particular cadets standing side by side is

A bag contains 10 white, 4 green balls. One ball is drawn at random. The probability that it is white is

In a simultaneous throw of two dice, the probability of getting a total of 7 is

Two cards are drawn from a pack. The probability of getting a king and a queen is

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

A bag contains 6 black, 9 white and 5 red balls. Three balls are drawn at random. What is the probability that the balls drawn are black?

A pair of dice is thrown and the numbers appearing have sum greater than or equal to 10. The probability of getting a sum of 10 is

In a collection of 6 Mathematics and 4 Physics books, the probability that 3 particular Mathematics books will be together, is