Question

Три спортивні школи відвідує 725 учнів. Першу школу відвідує 235 учнів, другу — на 7 більше, ніж першу. Скільки учнів відвідує третю школу?

Answer 1

1)725-235=490(уч.)-в другому і в третьому класі.
2)235+7=242(уч.)-в другому класі.
3)490-242=248(уч.)-в третьому класі
Відповідь: 248 учнів в третьому класі.
                                                  на русском
1)725-235=490(уч.)-во втором и в третьем классе.
2)235+7=242(уч.)-во втором классе.
3)490-242=248(уч.)-в третьем классе.
Ответ: 248 учеников в третьем классе.

Answer 2

Problem Analysis

We are given that there are three sports schools and a total of 725 students attending these schools. The first school has 235 students, the second school has 7 more students than the first school, and we need to find out how many students attend the third school.

Solution

Let's denote the number of students in the third school as x.

According to the given information: - The first school has 235 students. - The second school has 7 more students than the first school, so it has 235 + 7 = 242 students. - The total number of students in all three schools is 725.

To find the number of students in the third school, we can set up the following equation:

235 + 242 + x = 725

Simplifying the equation: 477 + x = 725

Subtracting 477 from both sides: x = 725 - 477 x = 248

Therefore, the third school has 248 students.

Answer

The third school has 248 students.