On the plate are pancakes identical in appearance: 3 with cottage cheese, 5 with meat and 4 with caviar and eggs
| June 30, 2020 | Education
On the plate are pancakes identical in appearance: 3 with cottage cheese, 5 with meat and 4 with caviar and eggs. Lena randomly chooses one pancake. Find the likelihood that he will be with cottage cheese
Decision:
In total, the plate contains 3 + 5 + 4 = 12 pancakes, 3 of them with cottage cheese. The probability that the selected pancake will be with cottage cheese is 3/12 = 1/4 = 0.25.
Answer: 0.25
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.