Grades 7-8 Video Solutions 2025-2025_7-8

Video Transcription

Video Summary

In a room, there are 10 more truth-tellers than liars. Everyone was asked if they are a truth-teller, and all 20 people responded "Yes." Both truth-tellers and liars would say "Yes" to appear as truth-tellers. Thus, there are 10 truth-tellers and 10 liars among those who would respond "Yes." However, the problem states there are 10 more truth-tellers than liars overall, meaning the group has 15 truth-tellers and 5 liars. Therefore, the answer is that there are 5 liars in the room.

Keywords

truth-tellers

liars

logic puzzle

problem-solving

room scenario