Question

В комнате стояли табуретки и стулья у каждой табуретки 3 ножки а стула -4. Всего табуреток и стульев было 5 а ножек у них было 18. Сколько было табуреток? стульев?

Answer 1

Две табуретки и три стула

Answer 2

Calculating the Number of Stools and Chairs

To solve this problem, we can use a system of equations to represent the given information and then solve for the number of stools and chairs.

Let's denote: - x as the number of stools - y as the number of chairs

We have the following information: 1. Each stool has 3 legs, and each chair has 4 legs. 2. There are a total of 5 stools and chairs. 3. The total number of legs is 18.

We can represent this information as a system of equations:

Equation 1: x + y = 5 (Total number of stools and chairs is 5)

Equation 2: 3x + 4y = 18 (Total number of legs is 18)

Now, let's solve the system of equations to find the values of x and y.

Solving the System of Equations

We can solve the system of equations using various methods such as substitution, elimination, or matrices. Let's use the substitution method to solve the system.

From Equation 1, we can express x in terms of y: x = 5 - y

Substitute this value of x into Equation 2: 3(5 - y) + 4y = 18 15 - 3y + 4y = 18 15 + y = 18 y = 18 - 15 y = 3

Now that we have found the value of y, we can find the value of x using Equation 1: x = 5 - 3 x = 2

Answer

So, there were 2 stools and 3 chairs in the room.