Quant Quiz

On basis of information given below, Answer the questions 1 -4 : 

There are 200 students in commerce batch of  Khalsa college. Out of them 100 play cricket, 50 play hockey and 60 play basketball. 3o students play both cricket and hockey, 45 students play both cricket and basketball and 35 students play both hockey and basketball.


Q1)-What is the maximum number of students who play all the games ?

30

20

10

40

Ans.- A

Q2)-What is minimum number of students who play all three games ?

10

20

30

none of these

Ans.- B

Q3)-What is the maximum number of students who play at least one game ?

100

40

120

130

Ans.- C

Q4)-What is the minimum number of students playing at least one game ?

100

120

130

none of these

Ans.- C

Q5)-Two brother X and Y appeared for an exam. Let A be the event that X is selected and B is the event that Y is selected. The probability of A is 1/7 and that of B is 2/9. Find the probability that both of them are selected.

1/63

2/35

2/63

9/14

Ans.- C

Q6)-A die is thrown twice and the sum of the numbers appearing is observed to be 6. find the conditional probability that the number 4 has appeared at least once?

1/5

3/5

2/5

None of these

Ans.- C

Q7)-A man and his wife appear in an interview for two vacancies in the same post. The probability of husband's selection is (1/7) and the probability of wife's selection is (1/5). What is the probability that only one of them is selected ?

2/7

1/7

4/5

3/4

Ans.- A

Q8)-A box contains 3 white, 4 red and 7 blue erasers. If five erasers are taken at random then the probability that all the five are blue color is:

13/211

2/126

3/286

12/121

Ans.- C

Q9)-If P(A) = 5/13, P(B) = 7/13, and P(A ∩ B) = 8/13, Find P(A ∪ B)?

4/13

5/13

6/13

None of these

Ans.- A

Q10)-An unbiased coin is tossed twice. Find the probability of getting 1,2,3 or in the first toss and 4,5 or 6 in second attempt ?

2/3

5/3

1/3

7/3

Ans.- C