Question

Решите задачу......В магазин привезли 255 белых и красных роз в трёх коробках .В первой коробке-75 белых роз, во второй -85роз, из которых 50-красных, а в третьей кооробке-только красные розы.Сколько всего красных роз привезли ???

Answer 1

1)85-50=35(шт.)-белых роз во второй коробке
2)75+35=110(шт.)-белых роз всего
3)255-110=145(шт.)-красных роз всего
Ответ: Всего привезли 145 красных роз

Answer 2

Белые розы нах-ся только в двух первых коробках:
75 - в первой
85-50=35 - во второй
75+35=110 - всего белых роз
255-110=145 - красных роз
Ответ: 145

Answer 3

Problem Analysis

To solve this problem, we need to determine the total number of red roses that were brought to the store. We are given that there were 255 roses in total, and they were divided into three boxes. The first box contained 75 white roses, the second box contained 85 roses (50 of which were red), and the third box contained only red roses.

Solution

To find the total number of red roses, we need to add the number of red roses in the second box to the number of red roses in the third box.

Let's calculate the number of red roses in the second box: - The second box contained 85 roses in total, and 50 of them were red.

Therefore, the number of red roses in the second box is 50.

Now, let's calculate the number of red roses in the third box: - The third box contained only red roses.

Therefore, the number of red roses in the third box is equal to the total number of roses in the third box, which is 85.

To find the total number of red roses, we add the number of red roses in the second box to the number of red roses in the third box: 50 + 85 = 135.

Therefore, a total of 135 red roses were brought to the store.

Answer

A total of 135 red roses were brought to the store.

Source:

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