Question

На автостоянке стояли машины,причём серых было в 1,5 раза больше,чем белых.Зелёных столько сколько серых и белых вместе.Сколько всего машин стояло на стоянке,если зелёных больше,чем белых на 30 машин?

Answer 1

Пусть белых машин х, тогда серых 1,5х
х+1,5х=30
2,5х=30
х=30:1,5
х=20 - белых машин
20*1,5=30 -серых машин
20+30=50 - зеленых машин
30+20+50=100 машин всего стояло .

Answer 2

Белых - х
серых- 1,5х
зеленых х+1,5х  или х+30
отсюда  х+1,5х=х+30
!.5х=30
х=20  1,5х=20    х+30=50
Белых 20 машин, 30 машин серых и 50 зеленых

Answer 3

Problem Analysis

We are given the following information about the cars parked in a parking lot: - The number of gray cars is 1.5 times the number of white cars. - The number of green cars is equal to the sum of the number of gray and white cars. - There are 30 more green cars than white cars.

We need to determine the total number of cars parked in the parking lot.

Solution

Let's assume the number of white cars is x.

According to the given information: - The number of gray cars is 1.5 times the number of white cars, so the number of gray cars is 1.5x. - The number of green cars is equal to the sum of the number of gray and white cars, so the number of green cars is x + 1.5x = 2.5x. - There are 30 more green cars than white cars, so 2.5x - x = 30.

To solve this equation, we can simplify it: - 2.5x - x = 30 - 1.5x = 30 - x = 30 / 1.5 - x = 20

Therefore, the number of white cars is 20.

To find the total number of cars, we can add up the number of white, gray, and green cars: - Total number of cars = number of white cars + number of gray cars + number of green cars - Total number of cars = 20 + 1.5(20) + 2.5(20) - Total number of cars = 20 + 30 + 50 - Total number of cars = 100

So, there were a total of 100 cars parked in the parking lot.

Answer

There were a total of 100 cars parked in the parking lot.