Question 1
6 people (Ivy, Sarah, Alex, Robert, Daisy, Riley) live on floors 1 to 6. The following mathematical relationships hold:
Based on these clues:
• The difference between floor numbers of Robert and Riley is 2
• The product of floor numbers of Sarah and Robert is 2
• The difference between floor numbers of Ivy and Alex is 1
• Ivy's floor is 2 times Riley's floor
On which floor does Riley live?
The unique arrangement (floor: person) is: {1: 'Robert', 2: 'Sarah', 3: 'Riley', 4: 'Daisy', 5: 'Alex', 6: 'Ivy'}.