Question

Ель выше берёзы на 6м. Рябина ниже ели на 15м. Какова высота ели,если высота берёзы 24м. Ответ: Какое данное решение в тексте задачи лишнее?Подчеркни его.Придумай и запиши такой вопрос,чтобы для решения нужны были все данные задачи?

Answer 1

24+6=30(м)-высота ели
30-15=15(м)-высота рябины

Answer 2

Problem Analysis

To solve this problem, we need to determine the height of the spruce tree given the information provided. The problem states that the spruce tree is 6 meters taller than the fir tree and 15 meters shorter than the rowan tree. The height of the fir tree is given as 24 meters.

Solution

Let's denote the height of the spruce tree as S, the height of the fir tree as F, and the height of the rowan tree as R.

From the problem statement, we can deduce the following relationships: 1. The spruce tree is 6 meters taller than the fir tree: S = F + 6. 2. The spruce tree is 15 meters shorter than the rowan tree: S = R - 15. 3. The height of the fir tree is given as 24 meters: F = 24.

To find the height of the spruce tree, we can substitute the value of F from equation 3 into equations 1 and 2: - From equation 1: S = 24 + 6 = 30. - From equation 2: 30 = R - 15.

To find the height of the rowan tree, we can rearrange equation 2: - R = 30 + 15 = 45.

Therefore, the height of the spruce tree is 30 meters and the height of the rowan tree is 45 meters.

Identifying the Extra Information

The extra information in the problem statement is the height of the fir tree (24 meters). This information is not necessary to solve the problem because we can determine the height of the spruce tree and the rowan tree without knowing the height of the fir tree.

Creating a Question Requiring All Given Data

To create a question that requires all the given data, we can ask: "What is the height of the rowan tree if the spruce tree is 6 meters taller than the fir tree and 15 meters shorter than the rowan tree, and the height of the fir tree is 24 meters?" This question requires the information about the height of the spruce tree, the height of the rowan tree, and the height of the fir tree to be able to answer it.

I hope this helps! Let me know if you have any further questions.