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The table shows laptops sold by four stores over three months. P — Jan 120, Feb 150, Mar 180; Q — Jan 140, Feb 130, Mar 160; R — Jan 100, Feb 160, Mar 140; S — Jan 180, Feb 170, Mar 150. What is the ratio of the total laptops sold by Store P to the total sold by Store R over the three months?

Competition practiceData Interpretation
  • A9 : 7
  • B9 : 8
  • C7 : 8
  • D8 : 9

Step-by-Step Solution

Store P total = 450; Store R total = 100 + 160 + 140 = 400. Ratio = 450 : 400 = 9 : 8.
Answer: B) 9 : 8

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