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

Video Transcription

Video Summary

The problem involves determining the number of blue balls from a set of 20 differently colored balls: yellow, green, blue, and black. Given constraints include that 17 balls are not green, 15 are not black, and 12 are not yellow. By subtracting each count of non-color-specific balls from the total, it is determined there are 3 green, 5 black, and 8 yellow balls. Adding these counts provides the number of non-blue balls (16), leading to the conclusion that there are 4 blue balls. Thus, the answer is 4 blue balls.

Keywords

colorful balls

blue balls

ball counting

color constraints

math problem