Question

В сентябре в школу-новостройку прошло 620 учащихся.К концу учебного года в связи с увеличением числа жителей района число учащихся увеличилось на 40 %.На сколько человек увеличилось число учащихся школа:? Сколько учащихся оказалось в школе к концу учебного года:?

Answer 1

1 .Составляем пропорцию:

620         -       100%

х             -          40%

Перемножаем крест накрест:

100х=24800

х=248(чел.)-пришло в школу потом

 

2. 620+248=868(чел)-было к концу года

Ответ: 248,  868

Answer 2

Calculation of the Increase in the Number of Students

To calculate the increase in the number of students in the school, we need to determine the number of students at the beginning of the school year and the percentage increase.

According to the information provided, in September, 620 students enrolled in the newly built school. By the end of the academic year, the number of students increased by 40%.

To find the increase in the number of students, we can use the following formula:

Increase = (Percentage Increase / 100) * Initial Number

Let's calculate the increase in the number of students:

Initial Number of Students: 620

Percentage Increase: 40%

Increase = (40 / 100) * 620

Increase = 0.4 * 620

Increase = 248

Therefore, the number of students increased by 248.

Total Number of Students at the End of the Academic Year

To find the total number of students at the end of the academic year, we need to add the increase to the initial number of students.

Initial Number of Students: 620

Increase: 248

Total Number of Students = Initial Number + Increase

Total Number of Students = 620 + 248

Total Number of Students = 868

Therefore, there were 868 students in the school at the end of the academic year.

Please note that the information provided is based on the given context, and the actual numbers may vary.