Question

На завод отправлено 3600 т угля в вагонах ,по 60 т в каждом ,и столько же угля в вагонах ,по 90 т в каждом. Каких вагонов потребовалось больше и на сколько больше ?

Answer 1

1) 3600 : 60 = 60 (вагонов) по 60т в каждом
2) 3600 : 90 = 40 (вагонов) по 90т в каждом
3) 60 - 40 = 20 (вагонов)
Ответ: на 20 вагонов по 60т  больше, чем вагонов по 90т.

Answer 2

1. 3600 т : 60 т = 60 вагонов - по 60 т
2. 3600 т : 90 т = 40 вагонов - по 90 т
3. 60 - 40 = 20 (вагонов) - больше вагонов по 60 т

Answer 3

Calculation of Coal in Each Type of Wagon

To determine which type of wagon required more coal and by how much, we need to calculate the total amount of coal in each type of wagon.

Let's denote the number of wagons carrying 60 tons of coal as x, and the number of wagons carrying 90 tons of coal as y.

According to the given information, the total amount of coal sent to the factory is 3600 tons. We can set up the following equation to represent this:

60x + 90y = 3600

To find the values of x and y, we need to solve this equation.

Solving the Equation

To solve the equation, we can use various methods such as substitution or elimination. Let's use the elimination method to find the values of x and y.

Multiplying the entire equation by 2, we get:

120x + 180y = 7200

Now, we can subtract the original equation from this new equation:

(120x + 180y) - (60x + 90y) = 7200 - 3600 60x + 90y - 60x - 90y = 3600 - 3600 0 = 0

The result is 0 = 0, which means the equation is satisfied for any values of x and y. This indicates that there are infinitely many solutions to this equation.

Conclusion

Based on the given information, we cannot determine which type of wagon required more coal or by how much. The equation is satisfied for any values of x and y.

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