Quantitative Aptitude: Quadratic Equations Questions Set 73

Shubhra
  1. x^2-4x+4=0
    y^2-9y+18=0
    x>y
    x< y
    X≥Y
    x≤y
    X=Y or no relation
    Option B
    1. x^2-4x+4=0
    x^2-2x-2x+4=0
    x=2,2
    2. y^2-9y+18=0
    y^2-6y-3y+18=0
    y=6,3

     

  2. x^2-x-12=0
    y^2-y-6=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option E
    1. x^2-x-12=0
    x^2-4x+3x-12=0
    x=4,-3
    2. y^2-y-6=0
    y^2-3y+2y-6=0
    y=3,-2

     

  3. x^2+7x+10=0
    y^2+12y=35=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option C
    1. x^+7x+10=0
    x^2+5x+2x+10=0
    x= -5,-2
    2. y^2+12y+35=0
    y^2+7y+5y+35=0
    y= -7,-5

     

  4. 25x^2=625
    y^2-10y+25=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option D
    1. 25x^2=625
    x=+5,-5
    2. y^2-10y+25=0
    y^2-5y-5y+25=0
    y=5,5

     

  5. x^2-x-42=0
    2y^2-8y+8=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option E
    1. x^2-x-42=0
    x^2-7x+6x-42=0
    x=7,-6
    2. 2y^2-8y+8=0
    2y^2-4y-4y+8=0
    2y=4,4
    y=2,2

     

  6. x^4=256
    y^2-12y+36=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option B
    1. x^4=256
    x=+4,-4
    2. y^-12y+36=0
    y^2-6y-6y+36=0
    y=6,6

     

  7. 2x+3y=3
    3x+5y=2
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option A
    1. 2x+3y=3……..(1)
    3x+5y=2………..(2)
    solving euations (1) and (2) we get,
    5(2x+3y=3)=10x+15y=15
    3(3x+5y=2)=9x+15y=6
    x=9
    by putting x=9, in equation(1) we get,
    18+3y=3
    y=-5

     

  8. 3x^2-7x+4=0
    4y^2-13y+9=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option E
    1. 3x^2-4x-3x+4=0
    3x=4,4
    x=4/3, 4/3
    2. 4y^2-13y+9=0
    4y^2-9y-4y+9=0
    4y=9,4
    y=9/4, 1

     

  9. x^2=16
    y^2+6y+8=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option E
    1. x^2=16
    x=4,-4
    2. y^2+6y+8=0
    y^2+4y+2y+8=0
    y= -4,-2

     

  10. 5x^2-8x+3=0
    2y^2-16y+32=0
    x>y
    x< y
    X≥Y
    X≤Y
    X=Y or no relation
    Option B
    1. 5x^2-8x+3=0
    5x^2-5x-3x+3=0
    5x=1, 3/5
    2. 2y^2-16y+32=0
    2y^2-8y-8y+32=0
    2y=8,8
    y=4,4

     

 

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