Test Series-16

### Instructions

• Your test contains 10 multiple choice questions with only one answer
• This is 30 min test.Please make sure you complete it in stipulated time
• You can Finish this test any time using 'Submit' button.
• Once finished you get a chance to review all question with correct answers and their solutions.

1.The quadratic equation x2-2x+6=0 has ?
No real roots
two distinct real root
One root
None of these

2) Which is not the root of the quadratic equation x2-6x+5=0
1
5
6
None of these

3.which of these is the condition for imaginary roots

b2 -4ac > 0
b2 -4ac < 0
b2 -4ac = 0
None of these

4. which of these is not a quadratic equation?

2x2-6x+5=0
(x – 2)(x + 1) = (x – 1)(x + 3)
(2x – 1)(x – 3) = (x + 5)(x – 1)
None of these

5. If a and b are the roots of the equation x2 - 7x + 8 = 0, what is the value of (1/a)+(1/b)?
3/4
7/8
1/2
None of these

6. For what values of k does the quadratic equation x2+2(k-4)x+2k=0 have no equal roots?
2
8
5
None of these

7.The hyponutese of the right angle triangle is 13 cm, The difference of other two sides is 7 cm,The sum of other two sides is ?
18
17
13
None of these

8.The sum of ages of a son and his father is 36 years and the product of their ages is 180. The difference of father and son age is
30
26
24
none of these

9.The length of a rectangle exceeds its width by 8 cm and the area of the rectangle is 240 sq. cm. Find the perimeter of the rectangle?
28 cm
36 cm
40 cm
None of these

10.The discriment of the quadratic equation (x-3)(x-4)=0
0
1
-1
2