Question

В автосалоне 25 машин марок "рено","пежо","форд". Машины "рено" составляли 405 от числа машин "пежо", а число машин "форд" составляло 2/3(две третьих) от числа машин "рено". Сколько машин каждого вида находилось в салоне? Напишите решение и ответ

Answer 1

Х - число машин Пежо
х * 40/100 = 0,4х - число машин Рено
2/3 * 0,4х = 2/3 * 4/10 *х  =  4/15 * х  -Количество автомобилей Форд  т.е.
х + 0,4х +4/15 * х = 25
х + 2/5 * х + 4/15 * х = 25 , решая уравнение получаем  25/15 * х = 25  т.е.  х=15  - количество автомобилей марки Пежо
0,4 х =15*0,4 = 6 - количество автомобилей марки Рено
6 *2/3 = 4 - количество автомобилей марки Форд 

Answer 2

Problem Analysis

We are given that there are 25 cars in an auto salon, with the brands "Renault," "Peugeot," and "Ford." The number of Renault cars is 405 more than the number of Peugeot cars, and the number of Ford cars is two-thirds of the number of Renault cars. We need to determine how many cars of each brand are in the salon.

Solution

Let's assume the number of Peugeot cars is x. Then, the number of Renault cars is x + 405, and the number of Ford cars is (2/3) * (x + 405).

To find the value of x, we can set up an equation based on the given information:

x + (x + 405) + (2/3) * (x + 405) = 25

Now, let's solve this equation to find the value of x.

Calculation

x + (x + 405) + (2/3) * (x + 405) = 25

Multiplying through by 3 to eliminate the fraction:

3x + 3(x + 405) + 2(x + 405) = 75

Simplifying:

3x + 3x + 1215 + 2x + 810 = 75

8x + 2025 = 75

8x = 75 - 2025

8x = -1950

x = -1950 / 8

x = -243.75

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

Please double-check the information provided and provide the correct values for the number of cars of each brand in the salon.