Unit 14 · Ordering Deduction
Zara to Will — Which Extra Meeting Fixes the Chain?
Lesson 3 of 6
About this lesson
Relay Logic questions are one of the most practically engaging types in Ordering Deduction — an object must travel from one person to another through a chain of timed handovers, and your job is to find where the chain breaks and what single extra meeting would repair it. The approach is always the same: trace forward from where the object starts.
Chapters
Question
Zara needs to deliver a birthday card to Will today. She will not see Will in person. These handovers will happen:
- Zara gives the card to Ben at 09:00.
- Mia meets Cora at 11:00.
- Cora meets Will at 13:00.
- Ben meets Sam at 14:00.
Which one extra meeting, if added, could allow Will to receive the card today?
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