A bag contains 5 red balls, 5 green balls and 5 white balls. If two balls are drawn at random, find the probability that the two balls are not white.

1.  2/21

2.  1/7

3.  4/21

4.  3/7

View Answer  
4
Correct Answer :

3/7


Explanation :
No Explanation available for this question

Two letters are selected at random from the set of English alphabets. What is the probability that both are vowels  

1.  2/65

2.  1/13

3.  2/5

4.  5/16

View Answer  
4
Correct Answer :

2/65


Explanation :
No Explanation available for this question

Out of 10 applicants there are five men and five women. The number of people, who can be selected for the job is 5. The probability that at least three of the selected members are women is____

1.  1/3

2.  1/4

3.  1/2

4.  1/5

View Answer  
4
Correct Answer :

1/2



Explanation :
No Explanation available for this question

Two cards are drawn at random from a well-shuffled pack of cards. What is the probability that both are kings or both are queens

1.  2/221

2.  55/221

3.  14/221

4.  None of these

View Answer  
4
Correct Answer :

2/221


Explanation :
No Explanation available for this question

Four digit numbers are formed by using the digits from 1 to 5. Find the probability that a number so formed is even, (one digit occurs at most once).

1.  1/5

2.  2/5

3.  3/5

4.  4/5

View Answer  
4
Correct Answer :

2/5



Explanation :
No Explanation available for this question

From a bag containing 6 pink and 8 orange balls, 8 balls are drawn simultaneously at random. The probability that 5 of them are pink and rest are orange is

1.  16/143

2.  19/143

3.  17/143

4.  18/143

View Answer  
4
Correct Answer :

16/143


Explanation :
No Explanation available for this question

Five boys are to be seated in a row. Find the probability that two particular boys do not sit together.

1.  3/5

2.  4/5

3.  9/10

4.  3/4

View Answer  
4
Correct Answer :

3/5


Explanation :
No Explanation available for this question

From a box containing a dozen bulbs, of which exactly one half are good, four bulbs are chosen at random to fit into the four bulb holders in a room; The probability that the room gets lighted is

1.  2/3

2.  1/3

3.  33/44

4.  32/33

View Answer  
4
Correct Answer :

32/33


Explanation :
No Explanation available for this question

Out of 8 mangoes, three are rotten. If three mangoes are selected at random, then find the probability that at least one of them is good.

1.  1/56

2.  l/2

3.  1/7

4.  55/56

View Answer  
4
Correct Answer :

55/56


Explanation :
No Explanation available for this question

Find the probability that a rectangle selected at random from a 8 x 8 chess board is a square.

1.  0

2.  17/108

3.  64/1296

4.  1

View Answer  
4
Correct Answer :

17/108



Explanation :
No Explanation available for this question
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