Probability Mcqs

Q.  From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is_________?

a. 1/26
b. 3/52
c. 15/26
d. 11/26


ANSWER: See Answer
 
Let E1 be the event of drawing a red card.

Let E2 be the event of drawing a king .
P(E1 ∩ E2) = P(E1) . P(E2)
(As E1 and E2 are independent)
= 1/2 * 1/13 = 1/26
MCQs:  If a card is drawn from a well shuffled pack of cards, the probability of drawing a spade or a king is__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If four coins are tossed, the probability of getting two heads and two tails is__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Out of first 20 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is_____________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If a number is chosen at random from the set {1, 2, 3, …., 100}, then the probability that the chosen number is a perfect cube is___________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A coin is tossed live times. What is the probability that there is at the least one tail?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The probability that a number selected at random from the first 50 natural numbers is a composite number is__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If the number obtained on interchanging the digits of a two-digit number is 18 more than the original number and the sum of the digits is 8, then what is the original number ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is :_________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Find the number which when multiplied by 15 is increased by 196.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is :___________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Three numbers are in the ratio of 3 : 4 : 6 and their product is 1944. The largest of these numbers is :___________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If the sum of a number and its square is 182, what is the number ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The sum of two numbers is 25 and their differenee is 13. Find their product :
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If the sum of two numbers is 33 and their difference is 15, the smaller number is :__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  What is the ratio of Faheem’s salary to Imran’s salary to Naveed’s salary if Faheem makes 80,000 rupees ,Imran 70,000 rupees and Naveed makes 50,000 rupees ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Two numbers are in the ratio 5:4 and their difference is 10.What is the largest number?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  In what ratio should the profit be divided if M, N, O invests capital in ratio 2:3:5 and their timing of their investments are in the ratio 4:5:6.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A bag contains 50 paise, 1 rupee and 2 rupee coins in the ratio 2:5:8. If the total amount is Rs. 352, find the total number of coins in the bag.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Three quantities X, Y and Z are such that XY=kZ where k is constant. Initially, X was at 4 and X:Y:Z was 2:3:4. If the value of Y is changed to 12 and Z is kept constant, find the value of X.
Category: Mathematics Quizzes,   Published by: T-Code Scripts