For the above question, the probability that there is at least one tail is:

1.  2/3  

2.  7/8

3.  3/8

4.  1/2  

5.  1/5.

View Answer  
5
Correct Answer :

7/8


Explanation :
No Explanation available for this question

The sum of the first term and the fifth term of an AP is 26 and the product of the second term by the fourth term is 160. Find the sum of the first seven terms of this AP

1.  110

2.  114

3.  112

4.  116

5.  120

View Answer  
5
Correct Answer :

112


Explanation :
No Explanation available for this question

Two fair dice are thrown. Find the probability of getting a number divisible by 2 or 4.

1.  1/2  

2.  3/4

3.  1/3

4.  2/3  

5.  1/4.

View Answer  
5
Correct Answer :

1/2

 


Explanation :
No Explanation available for this question

The sum of the third and the ninth term of an APis 10. Find a possible sum of the first 11 terms of this AP

1.  55

2.  44

3.  66

4.  48

View Answer  
4
Correct Answer :

66


Explanation :
No Explanation available for this question

Two fair dice are thrown. Find the probability of getting a number divisible 2 and 4.

1.  1/3  

2.  1/4

3.  3/4

4.  5/7  

5.  6/7.

View Answer  
5
Correct Answer :

1/4


Explanation :
No Explanation available for this question

The sum of the squares of the fifth and the eleventh term of an AP is 3 and the product of the second and the fourteenth term is equal it P. Find the product of the first and the fifteenth term of the AP

1.  (58/> - 39)/45

2.  (98P + 39)/72

3.  (116P - 39)/90

4.  (98/> + 39)/90 

5.  None of these

View Answer  
5
Correct Answer :

(98P + 39)/72


Explanation :
No Explanation available for this question

Two fair dice are thrown. Find the probability of getting a prime number  less than 8.

1.  11/13  

2.  1/13

3.  1/4

4.  13/36  

5.  5/18

View Answer  
5
Correct Answer :

5/18


Explanation :
No Explanation available for this question

If the ratio of harmonic mean of two numbers to their geometric mean is 12 :13, find the ratio of the numbers

1.  4/9 or 9/4

2.  2/3 or 3/2

3.  2/5 or 5/2

4.  3/4 or 4/3

5.  3/4 or 4/5

View Answer  
5
Correct Answer :

3/4 or 4/5


Explanation :
No Explanation available for this question

A bag contains 3 green and 7 white balls. Two balls are drawn from the bag in succession without replacement. What is the probability that both are white

1.  1/7  

2.  5/11

3.  7/11

4.  7/15  

5.  7/13.

View Answer  
5
Correct Answer :

7/15

 


Explanation :
No Explanation available for this question

The sequence [xj is a GP with x2/x4 - 1/4 and + x4 = 108. What will be the value of x3

1.  42

2.  48

3.  44

4.  56

5.  52

View Answer  
5
Correct Answer :

48


Explanation :
No Explanation available for this question
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