Book: RS Aggarwal - Mathematics
Chapter: 24. Probability
Subject: Maths - Class 8th
Q. No. 12 of Exercise 24A
Listen NCERT Audio Books - Kitabein Ab Bolengi
12
One card is drawn at random from a well-shuffled deck of 52 cards. Find the probability that the card drawn is (i) a 4 (ii) a queen (iii) a black card.
(i) Total number cards in a deck = 52
Number of 4’s in a deck of cards = 4
Probability P() = 
Probability of drawing a 4 numbered card from the deck of cards P(4)
= 
= 
=
(ii) Total number cards in a deck = 52
Number of Queens in a deck of cards = 4
Probability P() = 
Probability of drawing a queen from the deck of cards P(queen)
= 
= 
=
(iii) Total number cards in a deck = 52
Number of black cards in a deck of cards = 26 (13 spades and 13 clubs)
Probability P() = 
Probability of drawing a black card from the deck of cards P(black)
= 
= 
=
12