Question

В первой пачке было в 1,2 раза больше тетрадей чем во второй. После того как из первой пачки переложили во вторую 15 тетрадей, в обоих пачках стало поровну. Сколько тетрадей было в каждой пачке?

Answer 1

5.
в каждой папке было ровно 5 штук.

Answer 2

1 пачка - 1,5х-6

2 пачка - х

1) 1,5х-6=х+6

1,5х-х=6+6

0,5х=12

х=12:0,5

х=24 - было во 2 пачке

 

2) 24*1,5=36 - тетрадей было в 1 пачке

Answer 3

Problem Analysis

We are given two packs of notebooks, and the first pack has 1.2 times more notebooks than the second pack. After transferring 15 notebooks from the first pack to the second pack, both packs have an equal number of notebooks. We need to determine the number of notebooks in each pack.

Solution

Let's assume that the second pack initially has x notebooks. Since the first pack has 1.2 times more notebooks than the second pack, the number of notebooks in the first pack can be represented as 1.2x.

After transferring 15 notebooks from the first pack to the second pack, both packs have an equal number of notebooks. Therefore, we can set up the following equation:

1.2x - 15 = x

Simplifying the equation, we get:

0.2x = 15

Dividing both sides of the equation by 0.2, we find:

x = 75

So, the second pack initially had 75 notebooks. Since the first pack has 1.2 times more notebooks, the number of notebooks in the first pack is:

1.2 * 75 = 90

Therefore, there were 90 notebooks in the first pack and 75 notebooks in the second pack.

Answer

There were 90 notebooks in the first pack and 75 notebooks in the second pack.