Directions (1-2): Read the following information to answer the questions.
There are 9 red, 7 white and 4 black balls in an urn.
Q1. Two balls are drawn at random from the urn. What will be the probability that both the balls are red?
Q2. If two balls are selected at random, what is the probability that one ball is white and the other ball is red?
(a) 91/190
(b) 63/190
(e) 71/190
Q3. From a well - Shuffled pack of 52 playing cards, one card is drawn at random. What is the probability, that the card drawn will be a black king?
Q4. A die is thrown twice. What is the probability of getting a sum 7 from both the throws?
Q5. A bag contains 7 blue balls and 5 yellow balls. If two balls are selected at random, what is the probability that none is yellow?
Directions (6-10): Study the given information carefully to answer the questions that follow.
An urn contains 4 green, 5 blue, 2 red and 3 yellow marbles.
Q6. If two marbles are drawn at random, what is the probability that both are red or atleast one is red?
(c) 199/366
(d) 135/193
(e) None of these
Q7. If three marbles are drawn at random, what is the probability that atleast one is yellow?
(b) 199/364
(c) 165/364
(e) None of these
Q8. If eight marbles are drawn at random, what is the probability that there are equal number of marbles of each colour?
(b) 351/738
(c) 60/1001
(d) 1/1011
(e) None of these
Q9. If three marbles are drawn at random, what is the probability that none is green?
(b) 273/748
(e) None of these
Q10. If four marbles are drawn at random, what is the probability that two are blue and two are red?
(a) 10/1001
(c) 15/384
(e) None of these
Directions (11-12): Study the given information carefully to answer the questions that follow.
A basket contains 6 blue, 2 red, 4 green and 3 yellow balls.
Q11. If 4 balls are picked at random, what is the probability that 2 are red and 2 are green?
(e) None of these
Q12. If 3 balls are picked at random, what is the probability that none is yellow?
(a) 3/455
(e) None of these
Q13. A bag contains 2 red, 3 green and 2 blue balls. 2 balls to be drawn randomly, what is the probability that the balls drawn contain no blue ball?
(b) 10/21
(e) None of these
Q14. An urn contains 5 red, 4 white and 3 black balls. If two balls are drawn at random, find the probability that both the balls are red.
(d) 91/190
(e) None of these
Q15. A box contains 4 black balls, 3 red balls and 5 green balls. 2 balls are drawn from the box at random. What is the probability that both the balls are of the same colour?
(e) None of these
- http://www.bankersadda.com/2017/01/probability-questions-for-ippb-po-mains.html
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