Question

В магазин привозят розы из двух оранжерей, причем из первой оранжереи привозят в 3 раза больше роз, чем из второй. 20% роз из из первой оранжереи и 48% из второй оранжереи являются белыми. Какой процент белых роз из всех роз, которые привозят в магазин?

Answer 1

В первой x (роз)
в второй 3x (роз)
всего x+3x=4x
0.2×3x=0.6x (белых из первого)
0.48x (белых из второго)
0.6x+0.48x=1.08x (всего белых)
1.08x÷4x=0.12=12%

Answer 2

Во вторую Х ( роз )
В первую 3Х ( роз ) 
Х + 3Х = 4Х ( роз ) всего
-----------------------------------
0,2 * 3X = 0,6X ( роз ) белые из первой 
0,48Х ( роз ) белые из второй 
0,6Х + 0,48Х = 1,08Х ( роз ) всего белых 
-----------------------------------
1,08Х : 4Х = 0,27 = 27 ( % ) 
ОТВЕТ 27 %

Answer 3

Problem Analysis

We are given that roses are brought to a store from two greenhouses, with the first greenhouse supplying three times as many roses as the second greenhouse. Additionally, 20% of the roses from the first greenhouse and 48% of the roses from the second greenhouse are white. We need to determine the percentage of white roses out of all the roses brought to the store.

Solution

Let's assume that the second greenhouse supplies x roses. Since the first greenhouse supplies three times as many roses as the second greenhouse, the first greenhouse supplies 3x roses.

The total number of roses brought to the store is the sum of the roses from both greenhouses: x + 3x = 4x.

Now, we know that 20% of the roses from the first greenhouse are white, which means 0.2 * 3x = 0.6x roses from the first greenhouse are white.

Similarly, 48% of the roses from the second greenhouse are white, which means 0.48 * x = 0.48x roses from the second greenhouse are white.

The total number of white roses brought to the store is the sum of the white roses from both greenhouses: 0.6x + 0.48x = 1.08x.

To find the percentage of white roses out of all the roses brought to the store, we divide the total number of white roses by the total number of roses and multiply by 100:

(1.08x / 4x) * 100 = 27%.

Therefore, 27% of the roses brought to the store are white.

Answer

The percentage of white roses out of all the roses brought to the store is 27%.