The table shows the time in minutes spent shopping

Answer 1

| Shopper | Monday | Tuesday | Wednesday | Thursday | Friday |
|---------|-------|---------|-----------|----------|--------|
| Alice | 45 | 30 | 60 | 20 | 40 |
| Bob | 60 | 45 | 50 | 35 | 55 |
| Carol | 30 | 40 | 55 | 25 | 45 |
| David | 50 | 35 | 40 | 30 | 60 |