Advertisements
Advertisements
प्रश्न
Red queens and black jacks are removed from a pack of 52 playing cards. A card is drawn at random from the remaining cards, after reshuffling them. Find the probability that the card drawn is of red colour
उत्तर
In a pack of 52 playing cards, there are 2 red queens and 2 black jacks.
Red queens and black jacks are removed from the pack. Then,
Number of remaining cards = 52 − 4 = 48
∴ Total number of outcomes = 48
Two red queens are removed from the pack of cards.
Number of red cards in the remaining pack of cards = 26 − 2 = 24
So, the favourable number of outcomes are 24.
∴ P(drawing a red card) =\[\frac{\text{ Favourable number of outcomes }}{\text{ Total number of outcomes }} = \frac{24}{48} = \frac{1}{2}\]
APPEARS IN
संबंधित प्रश्न
There are three boys and two girls. A committee of two is to be formed. Find the probability of events that the committee contains :
a) At least one girl.
b) One boy and one girl
c) Only boys
In a single throw of a pair of different dice, what is the probability of getting a total of 9 or 11?
The king, queen and jack of clubs are removed form a deck of 52 playing cards and the remaining cards are shuffled. A card is drawn from the remaining cards. Find the probability of getting a card of a face card
The king, queen and jack of clubs are removed form a deck of 52 playing cards and the remaining cards are shuffled. A card is drawn from the remaining cards. Find the probability of getting a card of a queen of diamond.
Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is divisible by 5
What is the probability that a number selected at random from the numbers 3, 4, 5, ....9 is a multiple of 4?
If three coins are tossed simultaneously, then the probability of getting at least two heads, is
A card is accidently dropped from a pack of 52 playing cards. The probability that it is an ace is
A number is selected from first 50 natural numbers. What is the probability that it is a multiple of 3 or 5?
If two different dice are rolled together, the probability of getting an even number on both dice is
In a family of 3 children, find the probability of having at least one boy.
A box contains 25 cards numbered from 1 to 25. A card is drawn at random from the bag. Find the probability that the number on the drawn card is a prime number.
A bag contains 18 balls out of which x balls are red. If two more red balls are put in the bag, the probability of drawing a red ball will be `9/8` times the probability of drawing a red ball in the first case. Find the value of x.
All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is a face card.
Basketball players John, Vasim, Akash were practising the ball drop in the basket. The probabilities of success for John, Vasim and Akash are `4 /5`, 0.83 and 58% respectively. Who had the greatest probability of success ?
A coin is tossed twice. Find the probability of getting: two heads
A die is thrown once. Find the probability of getting:
a number greater than 3
A die is thrown once. Find the probability of getting:
a number less than 6
A dice is rolled once. What is the probability that the number on top will be a factor of 6
A bag contains 25 cards, numbered through 1 to 25. A card is drawn at random. What is the probability that the number on the card drawn is a perfect square?
