Question

Ученики собрали 1540 кг картофеля , причём 12 учеников собрали по 75 кг картофеля каждый, а все остальные - по 80 кг. Сколько всего школьников собирало картофель? Проверяю каждый свой шаг :)

Answer 1

1) 12*75= 900 (кг)- собрали 12 учеников
2) 1540-900= 640 (кг)- собрали остальные
3) 640:80=8 (уч)- собрали по 80 кг.
4) 12+8= 20 (уч)- всего собирало картофель

Answer 2

75*12=900 кг - 12 учеников
1540-900=640 кг остальные
640:80=8 школьников

Answer 3

Calculation of the Total Number of Students

To calculate the total number of students who collected potatoes, we need to divide the total weight of potatoes collected by the average weight of potatoes collected per student.

Given: - Total weight of potatoes collected: 1540 kg - Number of students who collected 75 kg each: 12 - Number of students who collected 80 kg each: All the remaining students

Let's calculate the total number of students who collected potatoes:

1. Calculate the total weight of potatoes collected by the 12 students who collected 75 kg each: - 12 students * 75 kg/student = 900 kg

2. Calculate the total weight of potatoes collected by the remaining students who collected 80 kg each: - Total weight of potatoes collected - Weight collected by the 12 students = 1540 kg - 900 kg = 640 kg

3. Calculate the number of students who collected 80 kg each: - Total weight of potatoes collected by the remaining students / Weight collected by each student = 640 kg / 80 kg/student = 8 students

4. Calculate the total number of students who collected potatoes: - Number of students who collected 75 kg each + Number of students who collected 80 kg each = 12 students + 8 students = 20 students

Therefore, the total number of students who collected potatoes is 20.

Please let me know if you have any further questions!