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## Tuesday, March 8, 2016

### QUANT QUIZ-12 BASED ON PROBABILITY

QUANT QUIZ-12 BASED ON
PROBABILITY
1. Two persons A and B appear in an interview for two vacancies. If the probabilities of their selections are ¼ and 1/6 , respectively, then the probability that none of them is selected, is;
a. 5/8
b. 5/12
c. 1/12
d. 1/24
e. none of these

Directions (2- 4): Study the given information carefully and answer the questions that follow.
A basket contains 4 red, 5 blue and 3 green marbles.
2. If two marbles are drawn at random, what is the probability that both are red:
a. 3/7
b. ½
c. 2/11
d. 1/6
e. none of these

3. If three marbles are picked at random, what is the probability that at least one is blue:
a. 7/12
b. 37/44
c. 5/12
d. 7/44
e. none of these

4. If three marbles are picked at random, what is the probability that either all are green or all are red:
a. 7/44
b. 7/12
c. 5/12
d. 1/44
e. none of these

5. What is the probability that a card drawn at random from a pack of 52 cards is either a king or a spade:
a. 17/52
b. 4/13
c. 3/13
d. 13/52
e. none of these

6. The probability of getting a composite number when a six-faced unbiased die is tossed is:
a. ¼
b. 1/3
c. ½
d. 1
e. none of these

7. Two unbiased dice are thrown simultaneously .The probability of getting the sum divisible by 3, is:
a. 11/36
b. 12/36
c. 13/36
d. 17/36
e. none of these

8. The probability that a leap year selected at random contains 53 Sundays , is:
a. 7/366
b. 26/183
c. 1/7
d.2/7
e. none of these

9. A number is chosen at random from the first 100 natural numbers. Find the probability that the number is odd or a  multiple of 8:
a. 62/100
b. 47/100
c. 67/100
d. 43/100
e. none of these

10. Two dice are tossed once .Find the probability of getting the sum of scores on the dice as 5.
a. 1/6
b. 1/35
c. 1/9
d. 1/8
e. none of these

1.A, 2.D, 3.B, 4.D, 5.B, 6.B, 7.A, 8.D, 9.A, 10.C,

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