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Q:

If (2x)(2y) = 8 and (9x)(3y) = 81 , then ( x , y ) is : 

  • 1
    ( 1, 1 )
  • 2
    ( 2, 2 )
  • 3
    ( 1, 2 )
  • 4
    ( 2, 1 )
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Answer : 3. "( 1, 2 ) "

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