Quadratic Equation Practice Question and Answer

Q:

Directions: In the following question, two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.

I. X– 5x + 6 = 0
II. 2y2 – 7y +3 = 0

153 0

  • 1
    X > Y
    Correct
    Wrong
  • 2
    X < Y
    Correct
    Wrong
  • 3
    X ≥ Y
    Correct
    Wrong
  • 4
    X ≤ Y
    Correct
    Wrong
  • 5
    X = Y or no relation can be established
    Correct
    Wrong
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Answer : 5. "X = Y or no relation can be established"

Q:

Directions: In the following question, two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.

I. 2x + 3y = 52
II. 5x – 2y = 16

198 0

  • 1
    X > Y
    Correct
    Wrong
  • 2
    X < Y
    Correct
    Wrong
  • 3
    X ≥ Y
    Correct
    Wrong
  • 4
    X ≤ Y
    Correct
    Wrong
  • 5
    X = Y or no relation can be established
    Correct
    Wrong
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Answer : 2. "X < Y"

Q:

Directions: In the following question, two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.

I. X3 = 125
II. Y3 = 8

177 0

  • 1
    X > Y
    Correct
    Wrong
  • 2
    X < Y
    Correct
    Wrong
  • 3
    X ≥ Y
    Correct
    Wrong
  • 4
    X ≤ Y
    Correct
    Wrong
  • 5
    X = Y or no relation can be established
    Correct
    Wrong
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Answer : 1. "X > Y"

Q:

Direction: In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² – 12x + 32 = 0
II. 2y² – 9y + 10 = 0

176 0

  • 1
    x > y
    Correct
    Wrong
  • 2
    x < y
    Correct
    Wrong
  • 3
    x ≥ y
    Correct
    Wrong
  • 4
    x ≤ y
    Correct
    Wrong
  • 5
    x = y or the relationship between x and y cannot be established.
    Correct
    Wrong
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Answer : 1. "x > y"

Q:

What are the roots of the quadratic equations?

  $$(x^2 + 3x - 154 = 0)$$

1623 0

  • 1
    11, 14
    Correct
    Wrong
  • 2
    11, -14
    Correct
    Wrong
  • 3
    14, -11
    Correct
    Wrong
  • 4
    14, -22
    Correct
    Wrong
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Answer : 2. "11, -14"

Q:

Express 15625 as a power of 5?

501 0

  • 1
    $$4^5$$
    Correct
    Wrong
  • 2
    $$5^6$$
    Correct
    Wrong
  • 3
    $$5^5$$
    Correct
    Wrong
  • 4
    $$6^5$$
    Correct
    Wrong
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Answer : 2. "$$5^6$$"

Q:

If x1 and x2 are the roots of the equations bx2-ax + log2my=0 such that x12=a2+x22 then evaluate the roots in terms of a and b.

848 0

  • 1
    $$ {a\over2ab}{(a^{2}+1)},{a\over2ab}{(1-b^{2})}$$
    Correct
    Wrong
  • 2
    $$ {a\over2b}{(b^{2}+1)},{a\over2b}{(1-a^{2})}$$
    Correct
    Wrong
  • 3
    $$ {a\over2ab}{(b^{2}-1)},{a\over2ab}{(1-b^{2})}$$
    Correct
    Wrong
  • 4
    $$ {a\over2b}{(b^{2}+1)},{a\over2b}{(1-b^{2})}$$
    Correct
    Wrong
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Answer : 1. "$$ {a\over2ab}{(a^{2}+1)},{a\over2ab}{(1-b^{2})}$$"

Q:

In equation $$ {x^{2}-24x+k=0}$$ the first root is x=2 then find out  the second root of equation.

1017 0

  • 1
    x=-22
    Correct
    Wrong
  • 2
    x=12
    Correct
    Wrong
  • 3
    x=22
    Correct
    Wrong
  • 4
    x=-12
    Correct
    Wrong
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Answer : 3. "x=22"

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