The sum of the slopes of the tangents to the circle x2+y2=1 from (2,3) is

1.  4

2.  3

3.  2

4.  2/3

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

The number of ways of dividing 15 books into 3 groups of 3,4,8 books respectively is

1.  13C312C48C8

2.  15!/4!8!

3.  15!/(3!)24!8!

4.  15!/2!3!4!8!

View Answer  
4
Correct Answer :

13C312C48C8


Explanation :
No Explanation available for this question

A question paper contains 5 questions each having an alternative. The number of ways that a student can answer one or more questions is

1.  32

2.  243

3.  242

4.  31

View Answer  
4
Correct Answer :

242


Explanation :
No Explanation available for this question

If c(2n,3):c(n,2)=12:1 then n=

1.  8

2.  6

3.  5

4.  4

View Answer  
4
Correct Answer :

5


Explanation :
No Explanation available for this question

The number of positive factors of 2520 excluding unity is

1.  47

2.  46

3.  45

4.  48

View Answer  
4
Correct Answer :

47


Explanation :
No Explanation available for this question

In constructing a problem on vectors the components are drawn from {0,1,2,3,4,5} the number of ways of getting the magnitude of a vector as ‘5’ is

1.  26

2.  35

3.  18

4.  9

View Answer  
4
Correct Answer :

9


Explanation :
No Explanation available for this question

The number of diagonals for an n sided polygon is

1.  n(n-3)/2

2.  n(n-1)

3.  n(n-1)(n-2)/6

4.  n(n-1)/2

View Answer  
4
Correct Answer :

n(n-3)/2


Explanation :
No Explanation available for this question

If a polygon of n sides has 275 diagonals,then n=

1.  15

2.  20

3.  35

4.  25

View Answer  
4
Correct Answer :

25


Explanation :
No Explanation available for this question

In a polygon no three diagonals are concurrent.If the total number of points of intersection of diagonals interior to the polygon is 35 and the number of diagonals is x,number of sides is y then (y,x)=

1.  (7,14)

2.  (5,20)

3.  (6,9)

4.  (5,5)

View Answer  
4
Correct Answer :

(7,14)


Explanation :
No Explanation available for this question

8 guests have to be seated half on each side of a long table.4 particular guests desire to sit on one particular side and 3 others on the other side. Determine the number of ways in which the sitting arrangement can be made

1.  11C5(9!)2

2.  11C3(9!)2

3.  11C4(9!)2

4.  (9!)2

View Answer  
4
Correct Answer :

11C5(9!)2


Explanation :
No Explanation available for this question
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