Advertisements
Advertisements
प्रश्न
All kings and queens are removed from a pack of 52 cards. The remaining cards are well shuffled and then a card is randomly drawn from it. Find the probability that this card is a red face card
उत्तर
In a pack of 52 playing cards, there are 4 queen and 4 king cards.
All the king and queen cards are removed from the pack. Then, Number of remaining cards = 52 − (4 + 4) = 44
∴ Total number of outcomes = 44
There are 2 red face cards (2 red jacks) in the remaining pack of cards.
So, the favourable number of outcomes are 2.
∴ P(getting a red face card) =\[\frac{\text{ Favourable number of outcomes }}{\text{Total number of outcomes}} = \frac{2}{44} = \frac{1}{22}\]
APPEARS IN
संबंधित प्रश्न
A box contains 20 cards numbered from 1 to 20. A card is drawn at random from the box. Find the probability that the number on the drawn card is divisible by 2 or 3.
A target shown in Fig. below consists of three concentric circles of radii, 3, 7 and 9 cm
respectively. A dart is thrown and lands on the target. What is the probability that the dart will land on the shaded region?
All the red face cards 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 drawn card is a face card.
In fig. 7 is shown a disc on which a player spins an arrow twice. The fraction `a/b` is formed, where 'a' is the number of sector on which arrow stops on the first spin and 'b' is the number of the sector in which the arrow stops on second spin. On each spin, each sector has equal chance of selection by the arrow. Find the probability that the fraction `a/b>1.`
Choose the correct alternative answer for the following question.
If n(A) = 2, P(A) = `1/5`, then n(S) = ?
A box contains 80 discs which are numbered from 1 to 80. If one disc is drawn at random from the box, find the probability that it bears a perfect square number.
Solve any two of the following.
If two coins are tossed simultaneously, find the probability of getting a head on both the coins.
The following table shows the blood-groups of employees in a bank.
Event C is : ‘the blood-group of an employee is AB.’
| Blood - group | A | B | AB | 0 |
| No. of employees | 20 | 40 | 15 | 25 |
If an employee is chosen at random, what is the probability that his blood-group is AB ?
Fill in the following boxes and find the answer
n(S)= ______
n(C)= ______
p(C)=________=_________
Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find the probability that the number on the drawn card is a prime number greater than 7
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 and
One card is drawn from a well shuffled deck of 52 playing cards. What is the probability of getting a non-face card?
A die thrown once. What is the probability of getting a number lying between 2 and 6?
A number is chosen at random from the number –3, –2, –1, 0, 1, 2, 3. What will be the probability that square of this number is less then or equal to 1?
A die is thrown once. The probability of getting a prime number is
In a single throw of a pair of dice, the probability of getting the sum a perfect square is
If a two digit number is chosen at random, then the probability that the number chosen is a multiple of 3, is
Cards numbered 1 to 30 are put in a bag. A card is drawn at random from the bag. Find the probability that the number on the drawn card is not divisible by 3,
A game consists of tossing a one-rupee coin three times, and noting its outcome each time. Find the probability of getting three heads.
One card is drawn at random from a well-shuffled deck of 52 cards. What is the probability of getting a 6?
At a Birthday Party, the children spin a wheel to get a gift. Find the probability of getting a ball
