- A170
- B160
- C200
- D180
Step-by-Step Solution
Store D sold 160 + 180 + 200 = 540 laptops; the average is 540 / 3 = 180 per month.
Answer: D) 180
Table of laptops sold by four stores over three months — Store A: Jan 120, Feb 150, Mar 180; Store B: Jan 200, Feb 160, Mar 140; Store C: Jan 100, Feb 110, Mar 130; Store D: Jan 160, Feb 180, Mar 200. What is the average monthly sales of Store D over the three months?
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