Question

5. Реши задачи. а) в магазине продали 12 упаковок цветных карандашей, а про- - в 3 раза больше. Сколько всего упаковок карандашей продали? стых б) в магазине продали 12 упаковок цветных карандашей, что в 3 раза больше, чем простых. Сколько всего упаковок каранда- шой прола ли? С усливием

Answer 1

Ответ:

а) Цветные - 12 шт

Простые - ? шт, в 3р >

Всего - ?

1) 12•3=36(шт)-Простые

2)36+12=48(шт)-Всего

Ответ: 16 карандашей продали

б) Цветные - 12 шт

Простые - ? шт, в 3р <

1) 12:3=4(шт)-Простые

2)12+4=16(шт)

Ответ: 16 карандашей продали

Answer 2

Task Analysis

We are given two problems related to the sale of colored and regular pencils in a store. Let's analyze each problem separately:

a) In the store, 12 packs of colored pencils were sold, which is 3 times less than the number of regular packs. We need to find the total number of packs of pencils sold.

b) In the store, 12 packs of colored pencils were sold, which is 3 times more than the number of regular packs. We need to find the total number of packs of pencils sold.

Problem a) Solution

In problem a), we are given that 12 packs of colored pencils were sold, which is 3 times less than the number of regular packs. Let's assume the number of regular packs sold is x.

According to the problem, the number of colored packs sold is 3 times less than the number of regular packs. This can be expressed as:

Number of colored packs = Number of regular packs - 3 * Number of regular packs

We can simplify this equation to:

Number of colored packs = Number of regular packs * (1 - 3)

Since we know that 12 packs of colored pencils were sold, we can set up the equation:

12 = x * (1 - 3)

Simplifying further:

12 = x * (-2)

Dividing both sides by -2:

x = 12 / -2

x = -6

However, the number of packs cannot be negative, so there seems to be an error in the problem statement. Please double-check the information provided.

Problem b) Solution

In problem b), we are given that 12 packs of colored pencils were sold, which is 3 times more than the number of regular packs. Let's assume the number of regular packs sold is x.

According to the problem, the number of colored packs sold is 3 times more than the number of regular packs. This can be expressed as:

Number of colored packs = Number of regular packs + 3 * Number of regular packs

We can simplify this equation to:

Number of colored packs = Number of regular packs * (1 + 3)

Since we know that 12 packs of colored pencils were sold, we can set up the equation:

12 = x * (1 + 3)

Simplifying further:

12 = x * 4

Dividing both sides by 4:

x = 12 / 4

x = 3

Therefore, the total number of packs of pencils sold is 3.

Summary

a) In problem a), there seems to be an error in the problem statement as the number of packs cannot be negative. Please double-check the information provided.

b) In problem b), the total number of packs of pencils sold is 3.