Using the table as, which product has the highest average sales across all cities? 
| City | Product A | Product B | Product C | Product D |
|---|---|---|---|---|
| Mumbai | 120 | 150 | 100 | 80 |
| Delhi | 100 | 130 | 90 | 100 |
| Kolkata | 80 | 110 | 120 | 90 |
| Chennai | 110 | 140 | 80 | 70 |
| Bangalore | 130 | 160 | 110 | 60 |
To determine which product has the highest average sales across all cities, calculate the average sales for each product:
Product A: (120 + 100 + 80 + 110 + 130) / 5 = 108
Product B: (150 + 130 + 110 + 140 + 160) / 5 = 138
Product C: (100 + 90 + 120 + 80 + 110) / 5 = 100
Product D: (80 + 100 + 90 + 70 + 60) / 5 = 80
Comparing the averages, Product B has the highest average sales with a score of 138.

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