A. 3/8
B. 6/11
C. 2/5
D. 4/5
Explanation:
Since four coins are tossed, sample space = 24
Getting two heads and two tails can happen in six ways.
n(E) = six ways
p(E) = 6/24 = 3/8
Related Mcqs:
- A bag contains a total of 93 coins in the form of one rupee and 50 paise coins. If the total value of coins in the bag is Rs.56, find the number of 50 paise coins in the bag?
A. 60
B. 56
C. 64
D. 74
E. None of these - A bag contains 1 rupee, 2 rupee and 5 rupee coins amounting to Rs.264. If the ratio of the number of these coins is 3:5:4, find the number of 1 rupee coins.
A. 66
B. 48
C. 24
D. 8 - A bag contains equal number of Rs.5, Rs.2 and Re.1 coins. If the total amount in the bag is Rs.1152, find the number of coins of each kind?
A. 432
B. 288
C. 144
D. 72
E. None of these - In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
A. 50
B. 100
C. 150
D. 200 - 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.
A. 160
B. 200
C. 250
D. 240 - A coin is tossed live times. What is the probability that there is at the least one tail?
A. 31/32
B. 1/16
C. 1/2
D. 1/32 - If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is__________?
A. 1/4
B. 1/2
C. 3/4
D. 3/5 - The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on at least one ticket is__________?
A. 0.4869
B. 0.5904
C. 0.6234
D. 0.5834 - A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.
A. 62/63
B. 125/126
C. 1/63
D. 1/126 - A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is___________?
A. 1/13
B. 2/13
C. 1/26
D. 1/52
