Question

в раёных соревнованиях принимали участие 1000 учеников известно что в школьных соревнованиях участовало учеников в 4 раза меньше чем в районных сколько всего учеников участволо в школьных и районых соревнованиях

Answer 1

1000/4=250 (уч.) - в школьных соревнованиях
1000+250=1250 всего

Answer 2

В школьных 1000:4=250, всего 1000+250=1250

Answer 3

Problem Analysis

We are given that 1000 students participated in a district competition, and the number of students who participated in a school competition was 4 times less than the number of students in the district competition. We need to find the total number of students who participated in both the school and district competitions.

Solution

Let's denote the number of students who participated in the district competition as D and the number of students who participated in the school competition as S.

From the given information, we know that the number of students who participated in the school competition is 4 times less than the number of students in the district competition. Mathematically, we can represent this as:

S = D - 4D

Simplifying the equation, we get:

S = -3D

We also know that the total number of students who participated in both the school and district competitions is 1000. Mathematically, we can represent this as:

S + D = 1000

Substituting the value of S from the previous equation, we get:

-3D + D = 1000

Simplifying the equation, we get:

-2D = 1000

Dividing both sides of the equation by -2, we get:

D = -500

Since the number of students cannot be negative, we can conclude that there is an error in the given information or the problem statement.

Conclusion

Based on the given information, it is not possible to determine the total number of students who participated in both the school and district competitions. The given information is contradictory, as it leads to a negative number of students participating in the district competition.