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Leave room for a whole chain
Use several ordering clues together.
Deduction: Comparative relationships
GUIDED WALKTHROUGHStep 1 of 3
Leave room for a whole chain
Each person has a different drink and snack. These small examples show one idea at a time; some squares will stay empty.
| Drinks | Snacks | Arrival times | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tea | Coffee | Juice | Cocoa | Apple | Crackers | Brownie | Pear | 9:00 | 10:00 | 11:00 | 12:00 | ||
| People | Ada | ||||||||||||
| Ben | |||||||||||||
| Cy | |||||||||||||
| Dee | |||||||||||||
| Arrival times | 9:00 | ||||||||||||
| 10:00 | |||||||||||||
| 11:00 | |||||||||||||
| 12:00 | |||||||||||||
| Snacks | Apple | ||||||||||||
| Crackers | |||||||||||||
| Brownie | |||||||||||||
| Pear | |||||||||||||
Look here This step✓ Match× Not a match
The clues
- Ben arrived one hour after Ada.
- Cy arrived sometime after Ben.
- Cy arrived at 11:00.
STEP 1
Write the order in one direction
Ada comes first, then Ben, then Cy. There are four possible times. Both Ada and Ben need room for someone later.
Keep a note
Earlier → later Ada → Ben → Cy Ada to Ben: exactly one hour