Question

В двух бидонах 70 литров молока.После того как из каждого бидона продали по 20 литров молока в одном осталось в 2 раза больше чем во втором.Сколько литров молока было в каждом бидоне первоначально

Answer 1

х литров осталось в одном, 2х литров осталось в другом.
в первом было х+20
во втором было 2х+20
всего было молока х+20+2х+20=70
3х+40=70
3х=30
х=10 (осталось в первом)
а было в нем 10+20=30 (литров)
а во втором 2*10+20=40 (литров)

Answer 2

Problem Analysis

We are given two containers, each initially containing 70 liters of milk. After selling 20 liters of milk from each container, the amount of milk remaining in the first container is twice the amount remaining in the second container. We need to determine the initial amount of milk in each container.

Solution

Let's assume that the initial amount of milk in the first container is x liters. Since the initial amount of milk in the second container is the same, it is also x liters.

After selling 20 liters of milk from each container, the amount of milk remaining in the first container is twice the amount remaining in the second container. Mathematically, we can represent this as:

x - 20 = 2(x - 20)

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

x - 20 = 2x - 40 (Distribute the 2)

x - 2x = -40 + 20 (Move the terms around)

-x = -20 (Combine like terms)

x = 20 (Divide both sides by -1)

Therefore, the initial amount of milk in each container was 20 liters.

Answer

The initial amount of milk in each container was 20 liters.