Mathematics
This is a mathematical task for elementary school students in China. The video has released the YouTube channel MindYourDecisions.
The task is to calculate the height of the table if the distance from the turtle's head under the table to the head of the cat on the table is 170 cm, and the distance from the head of the cat that is beneath the table to the head of the turtle on the table is 130 cm.
Watch the video: