Question

в трёх пачках было 250 тетрадей . в первой пачке на 30 тетрадей больше чем во второй , а в третьей на 20 меньше , чем во второй . сколько тетрадей было во второй пачке?

Answer 1

Ответ:

1) 250-30=220

Ответ:220

Пошаговое объяснение:

Answer 2

Problem Analysis

We are given three packs of notebooks, and we need to determine the number of notebooks in the second pack. The information provided is as follows: - The total number of notebooks in all three packs is 250. - The first pack has 30 more notebooks than the second pack. - The third pack has 20 fewer notebooks than the second pack.

Solution

Let's assume the number of notebooks in the second pack is x. Based on the given information, we can set up the following equations:

1. The total number of notebooks in all three packs is 250: - x + (x + 30) + (x - 20) = 250

2. Simplifying the equation: - 3x + 10 = 250

3. Solving for x: - 3x = 240 - x = 80

Therefore, there are 80 notebooks in the second pack.

Answer

There are 80 notebooks in the second pack.