Question

Боря собрал 12.6 кг яблок - это на 2.8 кг больше чем собрал Алеша и на 1.4 кг меньше чем собрал Сережа.Сколько килограмм они собрали вместе...?

Answer 1

найдем сколько яблок собрал Алеша

12,6-2,8=9,8 кг

найдем сколько яблок собрал Сережа

12,6+1,4=14 кг

найдем сколько яблок собрали ребята вместе

12,6+9,8+14=36,4 кг

Answer 2

1) 12.6-2.8=9.8 (кг) яблок собрал Алёша.

2) 12.6+1.4=14 (кг) яблок собрал Серёжа.

3)14+12.6+9.8=36.4 (кг) яблок собрали они вместе.

Ответ: 36.4 яблок.

Answer 3

Problem Analysis

We are given the following information: - Borya collected 12.6 kg of apples. - This is 2.8 kg more than what Alesha collected. - This is 1.4 kg less than what Serezha collected.

We need to find the total weight of apples collected by all three of them.

Solution

Let's assume that Alesha collected x kg of apples.

According to the given information, Borya collected 2.8 kg more than Alesha, so Borya collected (x + 2.8) kg of apples.

Similarly, Serezha collected 1.4 kg less than Borya, so Serezha collected (x + 2.8 - 1.4) kg of apples.

The total weight of apples collected by all three of them is the sum of their individual collections: x + (x + 2.8) + (x + 2.8 - 1.4) = 12.6

Simplifying the equation: 3x + 4.2 = 12.6 3x = 8.4 x = 2.8

Therefore, Alesha collected 2.8 kg of apples, Borya collected (2.8 + 2.8) = 5.6 kg of apples, and Serezha collected (2.8 + 2.8 - 1.4) = 4.2 kg of apples.

The total weight of apples collected by all three of them is 2.8 + 5.6 + 4.2 = 12.6 kg.

Answer

Together, they collected 12.6 kg of apples.