Круги Эйлера. Логическая задача на множества.

The solution to a logical problem involving sets is explained using Euler circles (Euler diagrams). 120 people were applying to a single program at a university. Applicants took three exams: mathematics, social studies, and Russian language. 60 passed mathematics, 40 passed social studies. 30 applicants passed mathematics and social studies, 30 passed mathematics and Russian language, and 25 passed social studies and Russian language. 20 passed all three exams, and 50 failed. How many applicants passed the Russian language exam? ➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖ We're analyzing our subscribers' problems! ➖➖➖➖➖➖➖➖➖➖➖➖➖➖ The next task can be yours. To do this, you need to: 1. Be subscribed to our channel (access to subscription information is open). 2. Write the terms of your task or a topic of interest in the comments to the last published video. ➖➖➖➖➖➖➖➖ Subscribe to the channel:    / @on-line-it6xk   ➖➖➖➖➖➖➖➖