Determine the average mass of a ball if 20 balls have a mass of 50 grams, 10 of 80 grams.
| September 26, 2021 | education
In order to determine the average mass of a ball, you first need to calculate the total mass of all balls.
We consider the total mass of the balls, which weigh 50 grams:
20 * 50 = 1000 grams.
We consider the total mass of the balls, which weigh 80 grams:
10 * 80 = 800 grams.
We find the total mass of all balls:
1000 + 800 = 1800 grams.
Then we find the total number of balls:
20 + 10 = 30 pieces.
In order to calculate the average mass of one ball, we divide the total mass of all balls by their total number:
1800/30 = 60 grams.
Answer: The average ball mass is 60 grams.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
