Equation Questions Practice Question and Answer

Q:

If one root of the equation $$ {Ax^2+Bx+C=0}$$ is two and a half times the others, then which of the following is True?

908 0

  • 1
    $$ {7B^2=3CA}$$
    Correct
    Wrong
  • 2
    $$ {7B^2=4CA}$$
    Correct
    Wrong
  • 3
    $$ {7B^2=36CA}$$
    Correct
    Wrong
  • 4
    $$ {10B^2=49CA}$$
    Correct
    Wrong
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Answer : 4. "$$ {10B^2=49CA}$$"

Q:

$$ ({2+\sqrt{5}})$$ and $$ ({2-\sqrt{5}})$$ is a quadratic equation with roots.

904 0

  • 1
    $$ {x^{2}-3x-4=0}$$
    Correct
    Wrong
  • 2
    $$ {x^{2}+3x-4=0}$$
    Correct
    Wrong
  • 3
    $$ {x^{2}-3x+4=0}$$
    Correct
    Wrong
  • 4
    $$ {x^{2}+3x+4=0}$$
    Correct
    Wrong
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Answer : 1. "$$ {x^{2}-3x-4=0}$$"

Q:

Direction: In the following questions two equations numbered I and II are given. You have to solve both the equations and give answer.
(A) x>y
(B) x≥y
(C) x˂y
(D) x≤y
(E) x=y or the relations ship cannot be established

 I. x2-7x + 12 = 0
II. y2 - 12y + 32 = 0 

876 0

  • 1
    A
    Correct
    Wrong
  • 2
    B
    Correct
    Wrong
  • 3
    C
    Correct
    Wrong
  • 4
    D
    Correct
    Wrong
  • 5
    E
    Correct
    Wrong
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Answer : 1. "A"

Q:

Direction: In the following questions two equations numbered I and II are given. You have to solve both the equations and give answer.
(A) x>y
(B) x≥y
(C) x˂y
(D) x≤y
(E) x=y or the relations ship cannot be established

 I. x2- 1 = 0
II. y2+ 4y + 3 = 0. 

875 0

  • 1
    A
    Correct
    Wrong
  • 2
    B
    Correct
    Wrong
  • 3
    C
    Correct
    Wrong
  • 4
    D
    Correct
    Wrong
  • 5
    E
    Correct
    Wrong
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Answer : 4. "D"

Q:

Find the exact value of the following question:

$$ 3{1\over2} × 3 {1\over 7}+ 5{3\over4}÷{46\over3}=?$$

872 0

  • 1
    $$ 13{2\over5}$$
    Correct
    Wrong
  • 2
    $$ 11{3\over8}$$
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
  • 5
    11
    Correct
    Wrong
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Answer : 2. "$$ 11{3\over8}$$"

Q:

If α and β are the roots of equation $$ {x^2-2x+4=0}$$, then what is the equation whose roots are ${α^3}\over{β^2}$$ and $${β^3}\over{α^2}$$.

860 0

  • 1
    $$ {x^2-4x+8=0}$$
    Correct
    Wrong
  • 2
    $$ {x^2-32x+4=0}$$
    Correct
    Wrong
  • 3
    $$ {x^2-2x+4=0}$$
    Correct
    Wrong
  • 4
    $$ {x^2-16x+4=0}$$
    Correct
    Wrong
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Answer : 3. "$$ {x^2-2x+4=0}$$"

Q:

If $$ {x^2-12x+33=0}$$, then what is the value of $${(x-4)^2+[{1\over({x-4})^2}}]$$.

855 0

  • 1
    16
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 4. "14"

Q:

Factor of $$ {ab-a-b+1}$$ is

830 0

  • 1
    (a-1)(b-1)
    Correct
    Wrong
  • 2
    (a+1)(b-1)
    Correct
    Wrong
  • 3
    (a-1)(b+1)
    Correct
    Wrong
  • 4
    (a+b)(b-1)
    Correct
    Wrong
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Answer : 1. "(a-1)(b-1)"

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