Porcentagem- Resolução de situação problema - Professora Angela

Hello Everyone!! In today's video we have: Percentage - Problem solving. This video was made at the request of a subscriber here on the channel. The problem he asked me to solve is this: (PUC - RIO-2010) In a Computer Science class made up of 40 boys and 40 girls, the following statistics are available: 20% of the boys are smokers, 30% of the girls are smokers. Therefore, the percentage of those who do not smoke is: And here is the video with my explanation. I hope you have clarified your doubts through the example and if you liked the video, click like so that more people can watch it and learn from it. Thank you and a big hug Professor Angela Mathematics Also watch the following videos here on the channel: Percentage:    • Porcentagem- Resolução de situação problem...   BASIC MATHEMATICS:    • Matemática Básica   HIGH SCHOOL    • ENSINO MÉDIO   It is important to note that so far the videos on this channel do not receive any sponsorship, they are made with my own resources. Angela Pereira Correia - Professor Angela Mathematics