Question

Помогите решить задачу При помоле пшеницы получается 81% муки, 2% манной крупы и 17% кормовых отходов. Сколько муки и манной крупы получится из 1,5 т зерна? Сколько килограммов пшеницы нужно перемолоть, чтобы получить: 1) 1кг муки; 2) 1 кг манной крупы? ( Ответ округлите до десятых.) спасибо!

Answer 1

1500кг - 100%
х кг - 81%
х= 1500*81/100=1215 кг или 1,2 т. муки
1500кг 100%
х кг - 2%
х=1500*2/100= 30 кг. или 0,03 т. манной крупы
Х кг - 100%
1 кг - 81%; Х=1*100/81=1,2 кг зерна надо перемолоть, чтобы получить 1 кг муки.
Х кг - 100%
1 кг - 2%; Х=1*100/2=50 кг зерна надо перемолоть, чтобы получить 1 кг. манной крупы.

Answer 2

Problem Analysis

To solve this problem, we need to determine the amount of flour and semolina that can be obtained from 1.5 tons of grain. We are given that during milling, 81% of the grain becomes flour, 2% becomes semolina, and 17% becomes feed waste. We also need to calculate the amount of grain required to produce 1 kilogram of flour and 1 kilogram of semolina.

Solution

Let's start by calculating the amount of flour and semolina obtained from 1.5 tons of grain.

1.5 tons of grain is equal to 1500 kilograms of grain.

From the given information, we know that 81% of the grain becomes flour. Therefore, the amount of flour obtained can be calculated as follows:

Amount of flour = 81% of 1500 kilograms

To calculate this, we can use the following formula:

Amount of flour = (81/100) * 1500 kilograms

Now, let's calculate the amount of semolina obtained. We know that 2% of the grain becomes semolina. Therefore, the amount of semolina obtained can be calculated as follows:

Amount of semolina = 2% of 1500 kilograms

Using the formula:

Amount of semolina = (2/100) * 1500 kilograms

Now, let's calculate the amount of grain required to produce 1 kilogram of flour and 1 kilogram of semolina.

To find the amount of grain required to produce 1 kilogram of flour, we can use the following formula:

Amount of grain for 1 kilogram of flour = 1 kilogram / (81/100)

Similarly, to find the amount of grain required to produce 1 kilogram of semolina, we can use the formula:

Amount of grain for 1 kilogram of semolina = 1 kilogram / (2/100)

Let's calculate the results.

Calculation

1. Amount of flour: - Amount of flour = (81/100) * 1500 kilograms - Amount of flour = 1213.5 kilograms

2. Amount of semolina: - Amount of semolina = (2/100) * 1500 kilograms - Amount of semolina = 30 kilograms

3. Amount of grain for 1 kilogram of flour: - Amount of grain for 1 kilogram of flour = 1 kilogram / (81/100) - Amount of grain for 1 kilogram of flour = 1.2345679012345678 kilograms (rounded to 1 decimal place)

4. Amount of grain for 1 kilogram of semolina: - Amount of grain for 1 kilogram of semolina = 1 kilogram / (2/100) - Amount of grain for 1 kilogram of semolina = 50 kilograms

Answer

Based on the calculations, we can conclude the following:

1. From 1.5 tons (1500 kilograms) of grain, we will obtain approximately 1213.5 kilograms of flour and 30 kilograms of semolina. 2. To produce 1 kilogram of flour, approximately 1.2 kilograms of grain is required (rounded to 1 decimal place). 3. To produce 1 kilogram of semolina, approximately 50 kilograms of grain is required.

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