Class 10 Important MCQ of Mathematics



                                        MCQ


1. The quadratic polynomial whose sum of zeroes  is 3 and product of zeroes is –2 is :
  • (a)   x2 + 3x – 2                                                           
  • (b)   x2 – 2x + 3
  • (c)   x2 – 3x + 2                                                            
  • (d)   x2 – 3x – 2

2.  If (x + 1) is a factor of 2x3 + ax2 + 2bx + 1, then find the values of a and b given that 2a – 3b = 4

  • (a)   a = –1, b = –2                                                       
  •  (b)   a = 2, b = 5
  •  (c)   a = 5, b = 2                                                          
  • (d)   a = 2, b = 0

 

3.  The number of zeroes that polynomial f(x) = (x – 2)2 + 4 can have is:
  •  (a)   1                                                                         
  •  (b)   2
  •  (c)   0                                                                           
  •  (d)   3

4.  A polynomial of degree n has
  • (a)   only 1 zero                                                         
  • (b)   exactly n zeroes
  • (c)   atmost n zeroes                                                         
  • (d)   more than n zeroes

5.  If p(x) = ax2 + bx + c, then is equal to
  • (a)   0                                                                           
  • (b)   1
  • (c)   sum of zeroes                                                           
  • (d)   product of zeroes

6.  If p(x) = ax2 + bx + c, then is equal to
  • (a)   0                                                                           
  • (b)   1
  • (c)   product of zeroes                                                         
  • (d)   sum of zeroes

7.  A quadratic polynomial whose one zero is 6 and sum of the zeroes is 0, is
  • (a)   x2 – 6x + 2                           
  • (b)   x2 – 36
  • (c)   x2 – 6                                    
  • (d)   x2 – 3

8.  If p(x) = ax2 + bx + c, and a + b + c = 0, then one zero
  •  (a)  -b/a                                       
  • (b)  c/a
  • (c)  b/c                                          
  • (d)   none of these

9.  If p(x) = ax2 + bx + c and a + c = b, then one of the zeroes is
  • (a)  b/a                                         
  • (b)  c/a
  • (c)  –c/a                                    
  • (d)  -b/a 

10.  If p(x) = ax + b, then zero of p(x)
  • (a)   a                                           
  •  (b)   b
  • (c)  -a/b                                        
  • (d)  -b/a                

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