There is a question paper consisting of 10 questions.Each question has an internal choice of 2 questions.In how many ways can a student attempt one or more questions of the given 10 questions in the paper

1.  210

2.  210- 1

3.  310

4.  310- 1

View Answer  
4
Correct Answer :

310- 1


Explanation :
No Explanation available for this question

A man has 5 friends. In how many ways can he invite at least one of his friends for a dinner

1.  32

2.  31

3.  24

4.  16

View Answer  
4
Correct Answer :

31



Explanation :
No Explanation available for this question

Rohit attempts a multiple choice question paper consisting of 10 questions and each question having 4 choices. The number of ways in which he can attempt the entire paper if he is marking the answers at random is.

1.  10P4

2.  40

3.  410

4.  104

View Answer  
4
Correct Answer :

410


Explanation :
No Explanation available for this question

In how many ways can 9 beeds be 'arranged in a necklace

1.  9!/2

2.  9!

3.  8!

4.  8!/2! 

View Answer  
4
Correct Answer :

8!/2! 


Explanation :
No Explanation available for this question

In how many ways can 5 students and 5 teachers sit around a circular table so that no two teachers sit together

1.  (4!)2

2.  (5!)2

3.  4!5!

4.  5!x6p5

View Answer  
4
Correct Answer :

4!5!


Explanation :
No Explanation available for this question

In how many ways can 5 books be distributed to 4 students such that each student is eligible to receive any number of books

1.  54

2.  45

3.  20

4.  50

View Answer  
4
Correct Answer :

45



Explanation :
No Explanation available for this question

When two dice are rolled together, what is the probability of getting the same number on both of them

1.  5/6

2.  1/5

3.  1/6

4.  1/36

View Answer  
4
Correct Answer :

1/6


Explanation :
No Explanation available for this question

If two consecutive letters are selected at random from the English alphabet, the probability that they are both consonants is

1.  2/5

2.  9/25

3.  16/25

4.  3/5

View Answer  
4
Correct Answer :

16/25


Explanation :
No Explanation available for this question

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
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