Instructions

In the following questions, a question is followed by data in the form of two statements labelled as I and II. You must decide whether the data given in the statements are sufficient to answer the questions.

Question 14

What is the average of the real numbers $$x$$, y and z?
I) $$2x + 3y + 4z = 29$$
II) $$5x + 4y + 3z = 25$$


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