BANKING TEST SERIES (PROBABILITY 2)

Welcome to your BANKING TEST SERIES (PROBABILITY 2)

1. A box contains 50 marbles of different colours i.e. purple, pink and blue. Find the number of pink marbles in the box, if probability of picking purple marble is 3/5 and that of either a purple or pink marble is 4/5.

a) 6

b) 8

c) 5

d) 10

e) None of these

2. The chance that Om can solve a certain problem is 1/4, the chance that Jay can solve it is 2/3. Find the probability that the problem is solved if they both try.

a) 1/4

b) 3/4

c) 1/2

d) 1/7

e) 1/8

3. Tickets numbered 1 to 50 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 8?

a) 1/7

b) 7/26

c) 3/25

d) 2/5

e) 3/5

4. There are 8 boys and 4 girls are giving an interview for a job. If three of them are selected, then what is the probability that one of the three is a girl and the other two are the boys?

a) 37/45

b) 27/65

c) 28/55

d) 32/45

e) 11/15

5. If two fair dice are rolled simultaneously, find the probability of getting a sum of 9 from two dice.

a) 1/6

b) 1/3

c) 1/9

d) 1/4

e) None of these

6. From a pack of well shuffled deck of cards, a card is drawn at random, find the probability of getting an Ace of spade or a jack of diamond.

a) 1/52

b) 1/26

c) 1/13

d) 2/13

e) None of these

7. From a pack of well shuffled deck of cards, two cards are drawn together at random. What is the probability of both the cards being Ace?

a) 1/221

b) 2/221

c) 2/121

d) 1/121

e) None of these

8. One card is drawn at random from the well-shuffled pack of 52 cards. What is the probability that the card is either a king or a multiple of 2?

a) 4/13

b) 7/13

c) 5/13

d) 6/13

e) None

9. One card is drawn at random from the well shuffled pack of 52 cards. What is the probability that the card is either a king or a multiple of 3.

a) 5/13

b) 6/13

c) 3/13

d) 4/13

e) 7/13

10. There are 30 students in a class. Two monitors are selected. One is girl and one is boy. Number of boys are 20 and number of girls are 10. In how many ways can monitors be selected?

a) 140

b) 200

c) 240

d) 360

e) 180

11. If 2 cards are drawn from a pack of 52 cards, find the probability that will be ace.

a) 1 / 12

b) 1 / 234

c) 2 / 245

d) 1 / 425

e) 1 / 221

12. A bag contains 7 pink and 3 green balls. 3 balls are drawn randomly. Find the probability that exactly two of them are pink.

a) 11/40

b) 12/19

c) 13/17

d) 21/40

e) 17/19

13. In a wardrobe, there are 12 jeans, 13 number of more kurta than the number of jeans and 20 number of more tops than the number of kurtas. One item is picked at random. Find the probability that is neither jeans nor kurta?

a) 145/82

b) 42/81

c) 36/81

d) 37/42

e) 37/82

14. If three dice are rolled simontaneously then find the probability of getting three sixes.

a) 1/12

b) 1/36

c) 1/18

d) 1/6

e) 1/216

BANKING TEST SERIES (PROBABILITY 2)

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