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2 . For what value of 'K' will the pair of equations 3x+4y=12 and kx+12=30 does not have a unique solution ?

  • A. 3
  • B. 7.5
  • C. 9
  • D. 12
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9 . If mx+ny=12my, then x/y+n/m= ?

  • A. 12
  • B. 12mn
  • C. 12m + 12y
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10 . If x-3y=3 and 2x+9y=11, then what are the values of x and y?

  • A. 2, 3
  • B. 1/4, 1/3
  • C. 4, 1/3
  • D. 1/3, 3
  • E. None of these
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Bangladesh Bank - Officer - 2001
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12 . x = 2y + 3 and y = -2 ; Quantity A = x and Quantity B = -1

  • A. Quantity A is greater
  • B. Quantity B is greater
  • C. The two quantities are equal
  • D. The relationship cannot be determined from the information given
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Bangladesh Bank - Assistant Director - 2009
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