CBSE Math Test Paper - X Probability -6

CBSE Math Test Paper - X Probability -6
 1. (1) A dice is thrown once. Find the probability of getting
(a) A number greater than 3 (b) A number less than 5

2. A bag contains 5 black, 7 red and 3 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is
(a) Red (b) Black or white (c) Not black

3. A bag contains 4 red 5 black and 6 white balls. A ball is drawn from the bag a random. Find the probability that the ball drawn is
 (a) White (b) Red (c) Not black (d) Red or white

4. A card is drawn at random from a pack of 52 playing cards. Find the probability that the card drawn is neither a queen nor a jack.

5. Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random. What is the probability that the ticket has a number which is a multiple of 3 or 7?

6. In a single throw of dice, what is the probability of
(a) An odd number on one dice and 6 on the other (b) A number greater than 4 on each dice (c) A total of 11 (d) Getting same number on either dice.

7. A die is thrown twice. Find the probability of getting
 (a) doublets (b) number greater than 5 on one dice.

8. Three coins are tossed simultaneously. Find the probability of getting

(a) Exactly 2 heads (b) No heads

9. In a simultaneous toss of four coins, What is the probability of getting: (a) Less than 2 heads? (b) Exactly 3 head (c) More than 2 heads?

10. Three coins are tossed once. Find the probability of: (a) 3 heads (b) exactly 2 heads (c) at least two heads
Answers 1. 1/2, 2/3, 2. 7/15, 8/15, 2/3 3. 2/5, 4/15, 2/3, 2/3 4. 11/13 ,5. 2/5 6. 1/6, 1/9, 1/18, 1/6 7. 1/6, 11/36 8. 3/8, 1/8 9. 5/6, 3/8, 5/16 10. 1/8, 3/8, 1/2