A regular polygon of n sides has 170 diagonals. then n =

1.  12

2.  17

3.  20

4.  25

View Answer  
4
Correct Answer :

20


Explanation :
No Explanation available for this question

A committee of 12 members is to be formed from 9 women and 8 men. The number of committees in which the women are in majority is

1.  2720

2.  2702

3.  2270

4.  2278

View Answer  
4
Correct Answer :

2702


Explanation :
No Explanation available for this question

A student has to answer 10 out of 13 questions in an examination choosing at least 5 questions from the first 6 questions. The number of choice available to the student is

1.  63

2.  91

3.  161

4.  196

View Answer  
4
Correct Answer :

161


Explanation :
No Explanation available for this question

1.  1/3

2.  2/3

3.  1

4.  2

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

If ab≠0 and the sum of the coefficients of x7 and x4 in the expansion of ((x2 /a)-(b/x))11

1.  a = b

2.  a + b = 0

3.  ab = -1

4.  ab = 1

View Answer  
4
Correct Answer :

ab = 1


Explanation :
No Explanation available for this question

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

1.  loge2

2.  loge3

3.  loge4

4.  loge5

View Answer  
4
Correct Answer :

loge3


Explanation :
No Explanation available for this question

In a triangle PQR,∠R=π/4,tan(Q/3) are the roots of the equation ax2+bx+c=0,the

1.  a+b =0

2.  b+c =0

3.  a+c =0

4.  b=c

View Answer  
4
Correct Answer :

a+b =0


Explanation :
No Explanation available for this question

The product of real of the equation |x|6/5-26|x|3/5-27=0

1.  -310

2.  -312

3.  -312/5

4.  -321/5

View Answer  
4
Correct Answer :

-310


Explanation :
No Explanation available for this question

If α,β,γ are the roots of the equation x3+px2+qx+r = 0 then the coefficient of x in the cubic equation whose roots are α(β+γ), β(γ+α) and γ(α+&b

1.  2q

2.  q2+pr

3.  p2- r

4.  r(pq - r)

View Answer  
4
Correct Answer :

q2+pr


Explanation :
No Explanation available for this question
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