Question

Девять школьников из пяти городов добирались на математический турнирна поезде. Каждый из них ночью упалс полки, кто-то несколько раз. Утромвыяснилось, что произошло 19падений. Причём школьники из одногогорода падали одинаковое количествораз, а из разных городов - разное. Асхатиз Усть-Каменогорска упал два раза.Сколько ещё школьников падало сполки два раза?Асхат и ещё 3 школьникаТОЛЬКО АсхатАсхат и ещё 1 школьникАсхат и ещё 2 школьника​

Answer 1

To solve this problem, let's analyze the given information step by step.

Given Information:

- There were nine schoolchildren from five different cities traveling on a train to a math tournament. - Each schoolchild fell off their bunk bed at night, some multiple times. - In the morning, it was discovered that there were a total of 19 falls. - The schoolchildren from the same city fell the same number of times, while those from different cities fell different numbers of times. - Askhad from Ust-Kamenogorsk fell twice.

Analysis:

Let's assume that the number of schoolchildren from each city is represented by the variables A, B, C, D, and E, where A represents the number of schoolchildren from Askhad's city (Ust-Kamenogorsk).

From the given information, we can deduce the following equations: 1. A + B + C + D + E = 9 (since there were nine schoolchildren in total) 2. A + B + C + D + E = 19 (since there were 19 falls in total) 3. A = 2 (since Askhad fell twice)

To find the number of schoolchildren who fell twice, we need to solve these equations.

Solution:

Let's substitute the value of A from equation 3 into equations 1 and 2: 1. 2 + B + C + D + E = 9 2. 2 + B + C + D + E = 19

Simplifying equation 1: B + C + D + E = 7

Simplifying equation 2: B + C + D + E = 17

Now, we have two equations with the same variables. Subtracting equation 1 from equation 2, we get: (B + C + D + E) - (B + C + D + E) = 17 - 7 0 = 10

This means that the equations are inconsistent, and there is no solution that satisfies all the given conditions. Therefore, we cannot determine the number of schoolchildren who fell off their bunk bed twice based on the given information.

Please let me know if there is anything else I can help you with!