Grades 11-12 Video Solutions 2026-2026_11-12

2026_11-12_19

Video Transcription

Video Summary

Ali can fill the pyramid in <strong>16 ways</strong>.

Reason: starting from the top and moving downward, each row is determined once one brick in that row is chosen, and each such choice has <strong>2 possibilities</strong>. Since there are <strong>4 rows</strong> to determine, the total is:

<strong>2 × 2 × 2 × 2 = 16</strong>

So the correct answer is <strong>b, 16</strong>.