Question 1

Time: 00:00:00
A box contains 23 red balls, 12 black balls, and 15 yellow balls. A ball is selected at random What is the probability that the ball is the non-red ball?

21/50

21/50

29/50

29/50

23/50

23/50

None

None

Question 2

Time: 00:00:00
If P(A) =0.37 , P(B) =0.32 , P(A∩B) = 0.11 Find P(A ∪ B)

0.48

0.48

0.58

0.58

0.68

0.68

0.45

0.45

Question 3

Time: 00:00:00
The names of 5 students from section A, 6 students from section B and 7 students from section C were selected. The age of all the 18 students was different. Again, one name was selected from them and it was found that it was of section B. What was the probability that it was the youngest student of section B?

1/18

1/18

1/15

1/15

1/6

1/6

1/12

1/12

Question 4

Time: 00:00:00
In Tata Steel, Probability of a defective item is 0.30 and the Probability of demandable items is 0.50. Then the probability of Demandable items which are Non-defective items also.

0.56

0.56

0.42

0.42

0.35

0.35

0.28

0.28

Question 5

Time: 00:00:00
Ronald Regan has a bag which contains 8 apples and 6 oranges. Four fruits are drawn out one by one and not replaced. What is the probability that they are alternatively of different fruits?

10/143

10/143

15/120

15/120

20/143

20/143

26/110

26/110

Question 6

Time: 00:00:00
In an interview the probability of Paresh rawal to got selected is 0.4. The probability of Amelia Earhart to got selected is 0.5. The probability of Sam to got selected is 0.6. The probability of Suresh to got selected is 0.8. What is the probability that at least 2 of them got selected on that day?

0.806

0.806

0.632

0.632

0.688

0.688

0.732

0.732

Question 7

Time: 00:00:00
Probability of telling truth by Raj is 0.26 and the Probability of telling truth by Aman is 0.20. What is the probability they will contradict each other

0.256

0.256

0.356

0.356

0.456

0.456

None

None

Question 8

Time: 00:00:00
Joshua Lawrence has a basket which contains 10 red ball and 15 white ball. out of which 3 red and 4 white balls are damaged. If two balls selected at random, what is the probability that either both are white balls or both are not damaged?

203/435

203/435

313/300

313/300

317/400

317/400

203/300

203/300

Question 9

Time: 00:00:00
There is a car race. Probability of winning a Tesla is 1/10Probability of winning a Bugatti car is 4/10. Find the probability that only one of them wins the Race.

1/2

1/2

1/4

1/4

2/3

2/3

3/4

3/4

Question 10

Time: 00:00:00
If a number is taken from 1 to 1000 what is the probability that number will be a two-digit number?

0.11

0.11

0.8

0.8

0.9

0.9

0.10

0.10

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