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.


| IPC crimes | SLL crimes | Other crimes | |
| Delhi | * | * | * |
| Goa | * | 4 | * |
| Haryana | 8 | 6 | * |
| Karnataka | 3 | 2 | * |
| Kerala | * | 9 | * |
| Maharashtra | 3 | 4 | 8 |
| Puducherry | 13 | 29 | * |
| Tamil Nadu | 11 | 7 | * |
| Telangana | 6 | 9 | 8 |
| West Bengal | 17 | * | 16 |

| No. of Friends | No. of Acquaintances | No. of Strangers | |
|---|---|---|---|
| Amudha | 1 | 4 | |
| Bharatan | |||
| Chandran | 1 | ||
| Dhinesh | 2 | ||
| Ezhil | 1 | ||
| Fani | 1 | ||
| Gowtham | 3 | 2 |
The following additional facts are also known.
1. Amudha, Bharatan, and Chandran are mutual strangers.
2. Amudha, Dhinesh, and Fani are Ezil's friends.
3. Chandran and Gowtham are friends.
4. Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5. Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
| Sellers | Sum of the cost price (in Rs.) of each pen and pencil | Cost price (in Rs.) of all pencils - Cost price (in Rs.) of all erasers | Sum of cost price (in Rs.) of all pens and erasers |
| Ram | 15 | 100 | 2100 |
| Mohan | 13 | 480 | 2050 |
| Lakhan | 27 | 600 | 3000 |
| Raghav | 19 | 300 | 3300 |
