Unit 12 · Multi-Step Conditional Reasoning
Famous Author's Three Books — Rule Direction Error
Lesson 11 of 30
About this lesson
Tim has read *Noon*. Three rules tell us things about *Morning* and *Night* readers — but all three rules point TOWARD *Noon*, not FROM it. Can we use those rules to say anything about what Tim has read?
Chapters
Question
A famous author has written three children’s books. The titles are: Morning, Noon, and Night. Year 5 did a survey to discover which of the books was most popular in the class. It was found that:
- All the children who had read Morning had also read Noon.
- Most of the children who had read Morning had also read Night.
- No child had read Night who had not read Noon.
We know that Tim has read Noon. Which one of the following statements is true?
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