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1. If the average (arithmetic mean) of x and y is 60 and the average (arithmetic mean) of y and z is 80, what is the value of (z-x)?
- A. 70
- B. 70
- C. 70
- D. 70
Answer: Option B
Explanation:
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1. If the average (arithmetic mean) of x and y is 60 and the average (arithmetic mean) of y and z is 80, what is the value of (z-x)?
Answer: Option B
Explanation:
Post your comments here: