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Maths Class X Chap-1 , Chap-2 ,Chap-3 ,Chap-4 , Chap-5 ,Chap-6 ,Chap-7 ,Chap-8 ,Chap-9 ,Chap-10 ,Chap-11 ,Chap-12 ,Chap-13 ,Chap-14, Chap-15
Chapter 4 : Quadratic Equations Answers
We are also conducting class room program for the preparation of AMU/JMI XI/Dip.Engg. Entrance Test-2018
1. When a quadratic polynomial equates to 0, we get
a) Linear equation
b) Quadratic equation
c) Cubic equation
d) None
Maths Class X Chap-1 , Chap-2 ,Chap-3 ,Chap-4 , Chap-5 ,Chap-6 ,Chap-7 ,Chap-8 ,Chap-9 ,Chap-10 ,Chap-11 ,Chap-12 ,Chap-13 ,Chap-14, Chap-15
# Students are welcome to discuss online, the above mention MCQs.
The discussion is free for all,appearing in XI/Dip.Engg. Entrance -2018
Office:Silver Plaza, Opposite Kabir Colony , Anoop Shaher Road, Jamalpur Aligarh-202002, U.P-India
Maths Class X Chap-1 , Chap-2 ,Chap-3 ,Chap-4 , Chap-5 ,Chap-6 ,Chap-7 ,Chap-8 ,Chap-9 ,Chap-10 ,Chap-11 ,Chap-12 ,Chap-13 ,Chap-14, Chap-15
Chapter 4 : Quadratic Equations Answers
We are also conducting class room program for the preparation of AMU/JMI XI/Dip.Engg. Entrance Test-2018
1. When a quadratic polynomial equates to 0, we get
a) Linear equation
b) Quadratic equation
c) Cubic equation
d) None
2. The equation for the form ax2+bx+c=0
will be a quadratic equation in variable x for
a) a=0
b) all real values of a
c) all real values of a except 0
d) a=1
a) a=0
b) all real values of a
c) all real values of a except 0
d) a=1
3. The equation of the form f(x)=0 will be
a quadratic polynomial if the degree of the polynomial is
a) 1
b) 2
c) 3
d) Any real number
a) 1
b) 2
c) 3
d) Any real number
4. If a=0 in the equation ax2+bx+c=0,
the equation is a
a) Linear equation in one variable
b) Quadratic equation in one variable
c) Bi-quadratic equation
d) None
a) Linear equation in one variable
b) Quadratic equation in one variable
c) Bi-quadratic equation
d) None
5. Which of the following equation is not
a quadratic equation?
a) 2x2=1
b) 3x2-4=0
c) 5x-2+3x+5=0
d) x2-x-1=0
a) 2x2=1
b) 3x2-4=0
c) 5x-2+3x+5=0
d) x2-x-1=0
6. The greatest power of the variable in a
quadratic equation is
a) 1
b) 2
c) 3
d) Any of the above
a) 1
b) 2
c) 3
d) Any of the above
7. The length of a rectangle is 5 more
than its width, if the area of rectangle is 200m2, the situation in
algebraic equation is
a) x2+5x+200=0
b) x2+5x-200=0
c) x2+5x+100=0
d) x2+5x-100=0
a) x2+5x+200=0
b) x2+5x-200=0
c) x2+5x+100=0
d) x2+5x-100=0
8.
Which of the following is a quadratic equation
a) (x-1)(x+2)=5
b) (2x-1)(x+2)=2x
c) (x+1)(x-1)(2x+2)=2x3
d) All of the above
a) (x-1)(x+2)=5
b) (2x-1)(x+2)=2x
c) (x+1)(x-1)(2x+2)=2x3
d) All of the above
9. Which of the following is a quadratic
equation?
a) (x-1)(x+2)=x2
b) (2x-1)(x+2)=2x2
c) (x+1)(x-1)(2x+2)=2x3+2x2
d) None of the above
a) (x-1)(x+2)=x2
b) (2x-1)(x+2)=2x2
c) (x+1)(x-1)(2x+2)=2x3+2x2
d) None of the above
10. The product of two consecutive
positive integers is 132. The sum of the
number is
a) 21
b) 23
c) 31
d) 33
a) 21
b) 23
c) 31
d) 33
11. What is the speed of the boat in still
water, if it takes 2 hrs to go 7kms downstream and 5kms upstream, the speed of
stream is 1km/h.
a) 5
b) 6
c) 7
d) 8
a) 5
b) 6
c) 7
d) 8
12. The value
of k for which the equation 3x2-kx-2=0 has real roots
a) 2
b) -2
c) 24
d) All of the above
a) 2
b) -2
c) 24
d) All of the above
13 The value of k for which the equation 3x2-kx+3=0 has real
roots
a) -5
b) +53
c) Both
d) None
a) -5
b) +53
c) Both
d) None
14. The value of k for which the equation 3x2-kx+3=0 has real
repeated roots
a) -6
b) +6
c) Both
d) None
a) -6
b) +6
c) Both
d) None
15. The value of k for which the equation 3x2-2x+k=0 has real
repeated roots
a) 1/3
b) -1/3
c) 3
d) -3
a) 1/3
b) -1/3
c) 3
d) -3
16. if the equation 3x2-2x+k=0 has real repeated roots, then
the roots are
a) 1/3,1/3
b) -1/3,-1/3
c) 3,3
d) -3,-3
a) 1/3,1/3
b) -1/3,-1/3
c) 3,3
d) -3,-3
17. The value of k for which the equation kx2+(k-3)x+1=0
has repeated roots
a) 1
b) 9
c) Both a and b
d) None
a) 1
b) 9
c) Both a and b
d) None
18. the sum of an integer and its reciprocal is 26/5,x then the number
is
a) 5
b) 1/5
c) either a or b
d) None
a) 5
b) 1/5
c) either a or b
d) None
19. A train covers a total journey of
600km in 5hrs such that during its second half of the journey its average speed
was 50km/h more than its average speed during first half of the journey. The
average speed of train during its second half of the journey is
a) 50 km/h
b) 100 km/h
c) 150 km/h
d) 200 km/h
a) 50 km/h
b) 100 km/h
c) 150 km/h
d) 200 km/h
20. the area of a square is reduced by 36m2
if its each side is reduced by 2m. Then the perimeter of the square is
a) 4
b) 8
c) 16
d) 32
a) 4
b) 8
c) 16
d) 32
21. The value of k for which the equation
3x2-kx+12=0 has imaginary roots
a) 10
b) 15
c) -15
d) 25
a) 10
b) 15
c) -15
d) 25
22. The value of k for which the equation
3x2-kx-12=0 has imaginary roots
a) 10
b) 15
c) -15
d) None
a) 10
b) 15
c) -15
d) None
23. The hypotenuse of a right triangle is
, if the difference of the
other two sides is 2, the one of the side is
a) 4
b) 7
c) 12
d) 17
a) 4
b) 7
c) 12
d) 17
24. The
perimeter and area of a rectangle are 68 and 288 respectively then the width of
the triangle is
a) 14
b) 16
c) 18
d) 20
a) 14
b) 16
c) 18
d) 20
25: The
value of n for which the 2x2n-1+3x-1=0 is a quadratic equation
a) 1/3
b) 3
c) -3/2
d) 3/2
Answers
a) 1/3
b) 3
c) -3/2
d) 3/2
Answers
# Students are welcome to discuss online, the above mention MCQs.
The discussion is free for all,appearing in XI/Dip.Engg. Entrance -2018
Office:Silver Plaza, Opposite Kabir Colony , Anoop Shaher Road, Jamalpur Aligarh-202002, U.P-India
Contact Number: +91-9045756384,9548040225.
e-mail id : qacademyaligarh@gmail.com
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