Grades 3-4 Video Solutions 2012-2012_3-4

Video Transcription

Video Summary

The number of children in the class, given Nikolai and the formation of groups of two girls and one boy, must be a multiple of three plus one. After subtracting one for Nikolai, the number should be divisible by three. Checking each option: 30 minus one equals 29, not divisible by three; 20 minus one equals 19, also not divisible by three; 24 minus one equals 23, not divisible; 25 minus one equals 24, divisible by three (8x3=24); 29 minus one equals 28, not divisible. Thus, the answer is 25, as 25 minus one is divisible by three.

Keywords

children

class

groups

divisible

Nikolai