Question

За 1кг масла,1кг сыра и 3 кг масла заплатили 25 ман,За 1кг масла,1кг сыра и 3 кг мяса заплатили 33 ман, 1кг масла дороже 1 кг сыра на 3ман,Сколько стоит 1кг сыра?

Answer 1

1кг масла стоит 74,60                                                                                                        1)74,60*0,6=44,76 (р.) - заплатили за 600г масла                                                                  2)231,96-44,60=187,20 (р.) - заплатили за 1,2кг. сыра                                          3)187,20/1,2=156 (р.) - стоит 1 кг. сыра                                                                                      Ответ: 1 кг. сыра стоит 156р.

Answer 2

Calculation of the Cost of Cheese

To calculate the cost of 1 kg of cheese, we can use the given information about the prices of oil, cheese, and meat. Let's break down the given information:

- 1 kg of oil + 1 kg of cheese + 3 kg of oil = 25 manats - 1 kg of oil + 1 kg of cheese + 3 kg of meat = 33 manats - 1 kg of oil is 3 manats more expensive than 1 kg of cheese

To find the cost of 1 kg of cheese, we need to solve the system of equations formed by the given information.

Let's assign variables to the unknowns: - Let x be the cost of 1 kg of oil. - Let y be the cost of 1 kg of cheese. - Let z be the cost of 1 kg of meat.

From the first equation, we can write: - x + y + 3x = 25

From the second equation, we can write: - x + y + 3z = 33

From the third piece of information, we know that 1 kg of oil is 3 manats more expensive than 1 kg of cheese: - x = y + 3

Now we can substitute the value of x from the third equation into the first and second equations to solve for y and z.

Substituting x = y + 3 into the first equation: - (y + 3) + y + 3(y + 3) = 25 - Simplifying the equation: 5y + 12 = 25 - Solving for y: 5y = 13 - y = 13/5 = 2.6

Therefore, 1 kg of cheese costs 2.6 manats.

Note: The given information does not provide enough details to determine the cost of 1 kg of meat.