Question

Линда решила две задачи за 20 минут.Первую задачу она решала на 4 минуты дольше, чем вторую.сколько минут Линда решала каждую задачу?

Answer 1

1) (20 - 4) :2 = 8(минут) решала Линда вторую задачу
2) 8 + 4 = 12 (минут)
Ответ: 12 минут Линда решала первую задачу, 8 минут - вторую.

Answer 2

Problem Analysis

Linda solved two problems in a total of 20 minutes. The first problem took her 4 minutes longer to solve than the second problem. We need to determine how many minutes Linda spent on each problem.

Solution

Let's assume that Linda spent x minutes on the second problem. Since the first problem took her 4 minutes longer, she spent x + 4 minutes on the first problem.

According to the problem, the total time Linda spent on both problems is 20 minutes. We can write this as an equation:

x + (x + 4) = 20

Simplifying the equation:

2x + 4 = 20

Subtracting 4 from both sides:

2x = 16

Dividing both sides by 2:

x = 8

Therefore, Linda spent 8 minutes on the second problem and 8 + 4 = 12 minutes on the first problem.

Answer

Linda spent 8 minutes on the second problem and 12 minutes on the first problem.