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1. The average (arithmetic mean ) of x and y is 40 . If z=10 , what is the average of x, y and z?
- A. 15
- B. 15
- C. 15
- D. 15
Answer: Option D
Explanation:
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1. The average (arithmetic mean ) of x and y is 40 . If z=10 , what is the average of x, y and z?
Answer: Option D
Explanation:
Post your comments here: