Instructions

A question isfollowed bydataintheform of two statements labelled as I and II. You must decide whether the data given in the Statements are sufficient to answerthe questions.

Question 13

What is the value of $$\frac{x^2 + y^2 - z^2}{xy}$$?
I. x : y = 1 : 2
II. y : z = 2 : 3

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What is the value of $$\frac{x^2 + y^2 - z^2}{xy}$$?I. x : y = 1 : 2II. y : z = 2 : 3

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What is the value of $$\frac{x^2 + y^2 - z^2}{xy}$$?
I. x : y = 1 : 2
II. y : z = 2 : 3