- A150
- B160
- C145
- D140
Step-by-Step Solution
Store A total is 120 + 150 + 180 = 450, so the monthly average is 450 / 3 = 150.
Answer: A) 150
Study the table of books sold by four stores over three months — Store A: Jan 120, Feb 150, Mar 180; Store B: Jan 200, Feb 160, Mar 240; Store C: Jan 90, Feb 110, Mar 130; Store D: Jan 160, Feb 140, Mar 100. What is the average number of books sold per month by Store A?
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