# Probability with Explanation

Q1. Three unbiased coins are tossed. What is the probability of getting at least 2 heads?

A.
 13
B.
 18
C.
 12
D.
 14

Q2. One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card?

A.
 14
B.
 113
C.
 952
D.
 413

Q3. One ticket is drawn at random from a bag containing 20 tickets numbered 1 to 20. What is the probability that the ticket was drawn having a number multiple of 3?

A.
 310
B.
 113
C.
 12
D.
 25

Q4. From a pack of 52 cards, one card is drawn at random. What is the probability that the card drawn is ten or a spade?

A.
 126
B.
 113
C.
 14
D.
 413

Q5. The probability that a card is drawn from a pack of 52 cards will be a diamond or a king, is:

A.
 413
B.
 213
C.
 113
D.
 152

Q6. A box contains 5 black, 4 orange and 3 white marbles. Three marbles are drawn at random. What is the probability that they are not of the same color?

A.
 5255
B.
 355
C.
 4144
D.
 344

Q7. A bag contains 6 orange and 4 black balls. Three balls are drawn at random. What is the probability that one ball is black and the other two are orange?

A.
 310
B.
 12
C.
 112
D.
 310