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1. If x>y>1 and xy=z, which of the following is true?

  • A. y
  • B. y
  • C. y
  • D. y

Answer: Option A

Explanation:

xy+z=xy+xz
z=xz
xz-z=0
z(x-1)=0

Means;
either z=0
OR
x-1=0 i.e. x=1

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