Some sample question for WBSSC SLST MATH for XI-XII  (PG category)

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[Total number of question  ……. typing ]

1.


The mathematical expectation of sum of points on n dice is

(a) 4n/2 (b) 7n/2  (c) 5n/4 (d) none of these

 
 
 
 

2.

If x has a Poisson distribution with parameter 3, then P(x ≥ 3) is

(a) 13/e3   (b)1 17/(2e3)     (c) 7/e3     (d) 1 7/e3

 
 
 
 

3.

A particle describes the curve r = aeθ with constant angular velocity. Its radial acceleration is

(a) r   (b) 1/ (c) 0  (d) 1/r

 
 
 
 

4.

If x, y, z > 0 and x + y + z = 1, then maximum value of (1 – x)(1 – y)(1 – z) is

(a) 1/27 (b)  4/27  (c) 16/27  (d) 8/27

 
 
 
 

5.

Square of any odd integers can be expressed as   [n in integer]

(a) 5n – 1  (b) 3n +2  (c) 4n – 1 (d) 8n + 1

 
 
 
 

6.


diff_equation

 
 
 
 

7.


asymptote

 
 
 
 

8.

The radius of curvature at point of the curve is p2ar is varies as

(a) (b) r 3/2  (c) r   1/2   (d) r   1/2

 
 
 
 

9.


linear_transformation

 
 
 
 

10.


nm1_09_numerical_analysis

 
 
 
 

11.


lpp1_09

 
 
 
 

12.


beta_gamma

 
 
 
 

13.


series

 
 
 
 

14.

A plane passes through a fixed point ( p, q, r ) and cuts the axes at A, B, C. Then the locus of the centre of the sphere OABC is

(a) x/p + y/q + z/r = 1

(b) x/p + y/q + z/r = 4

(c) p/x + q/y + r/z = 2

(d) p/x + q/y + r/z = 3

 
 
 
 

15.


vector

 
 
 
 

16.


vector2