To celebrate New Year's Day, the school will use three colors of red, yellow and blue paint to paint the ceiling and walls of the classroom. How many different colors are there?

For many years, Jingyou Paint has been pursuing the ultimate environmental protection, comprehensive functionality, and strong decorative properties, making it the best choice for interior wall decoration in many schools. For the better future of young people, we strive diligently and make continuous progress. Cooperate with Zhejiang Wenling Zeguo Public Kindergarten, Xi'an Lingfengda Kindergarten, Hangzhou Xiaoshan Science and Technology City Shangde Kindergarten, Beijing Daxing District No. 1 Middle School West Campus, HuZ School, Zhejiang Radio and Television University, Northeastern University, etc. We have reached a cooperation with two campuses to carry out indoor paint painting ~ we look forward to your experience.