Question

Участникам соревнований вручили разноцветные кепки: 7 красных, 8 синих, а зелёных на 3 меньше. чем синих. Сколько всего кепок?

Answer 1

зеленых получается 8-3=5

7+8+5+20 кепок всего

Answer 2

Problem Analysis

We are given the following information: - There are 7 red caps. - There are 8 blue caps. - There are 3 fewer green caps than blue caps.

We need to determine the total number of caps.

Solution

Let's assume the number of green caps is x. According to the given information, we can set up the following equations:

- Number of red caps = 7 - Number of blue caps = 8 - Number of green caps = Number of blue caps - 3 = 8 - 3 = 5

To find the total number of caps, we need to add the number of red, blue, and green caps together:

Total number of caps = Number of red caps + Number of blue caps + Number of green caps

Substituting the given values, we get:

Total number of caps = 7 + 8 + 5 = 20

Therefore, there are a total of 20 caps.

Answer

There are a total of 20 caps.