Question

Реши задачу. В первом квартале третьеклассники выучили 6 новых песен, во втором и третьем - в 4 раза больше, чем в первом. Сколько всего песен выучили третьекласс- ники за три квартала?​

Answer 1

Ответ:

30 песен

Пошаговое объяснение:

1) 6 * 4 = 24 (песни) - выучили третьеклассники за третий и второй квартал

2) 6 + 24 = 30 (песен) - всего выучили третьеклассники

Answer 2

Problem Analysis

We are given the following information: - In the first quarter, third graders learned 6 new songs. - In the second and third quarters, they learned 4 times more songs than in the first quarter.

We need to determine the total number of songs learned by the third graders in three quarters.

Solution

To solve this problem, we can break it down into three steps: 1. Calculate the number of songs learned in the second and third quarters. 2. Calculate the total number of songs learned in the first, second, and third quarters. 3. Sum up the results from steps 1 and 2 to find the total number of songs learned by the third graders in three quarters.

Let's calculate the number of songs learned in the second and third quarters first.

Step 1: Calculate the number of songs learned in the second and third quarters

We are given that the number of songs learned in the second and third quarters is 4 times more than the number learned in the first quarter. Since the first quarter had 6 songs, we can calculate the number of songs learned in the second and third quarters as follows:

Number of songs learned in the second and third quarters = 4 * Number of songs learned in the first quarter

Substituting the value of the number of songs learned in the first quarter (6), we get:

Number of songs learned in the second and third quarters = 4 * 6 = 24

Therefore, the third graders learned a total of 24 songs in the second and third quarters.

Step 2: Calculate the total number of songs learned in the first, second, and third quarters

To calculate the total number of songs learned in the first, second, and third quarters, we need to sum up the number of songs learned in each quarter.

Total number of songs learned = Number of songs learned in the first quarter + Number of songs learned in the second and third quarters

Substituting the values we have:

Total number of songs learned = 6 + 24 = 30

Therefore, the third graders learned a total of 30 songs in three quarters.

Answer

The third graders learned a total of 30 songs in three quarters.

[SOURCE 1]