Grades 11-12 Video Solutions 2025-2025_11-12

Video Transcription

Video Summary

In the given problem, a student throws five stones at a window, creating a series of linear cracks that stop at either previous cracks or the window edge. The goal is to determine the order in which the stones were thrown based on the interactions between the cracks. The solution involves examining which cracks intersect with others to deduce the sequence: D is first (as it doesn't hit any existing crack), followed by A (which hits D's crack), then C (hits A's crack), B (hits C’s crack), and finally E (which relies on B’s crack). Thus, the correct order is D, A, C, B, E.

Keywords

stone throwing

crack sequence

window cracks

interaction analysis

order determination