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1. The average of x, y, z is 6 and x-y = 4, xy = 21, what is the value of z?
- A. 6
- B. 6
- C. 6
- D. 6
Answer: Option C
Explanation:
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1. The average of x, y, z is 6 and x-y = 4, xy = 21, what is the value of z?
Answer: Option C
Explanation:
Post your comments here: