Question

СРОЧНО СРОЧНО Каким может быть число кур в небольшом фермерском хозяйстве, если известно, что сумма цифр в этом числе равна 11, а его вторая цифра меньше первой на 7? Численность кур в этом году превысила последнее однозначное число, а планы хозяина фермы грандиозны, и к следующему году он планирует увеличить поголовье до 100 особей.

Answer 1

Ответ:

92 курицы.

Объяснение:

Если вторая цифра меньше первой на 7 единиц,значит второй можнт быть только 1 или 2,иначе плюс 7 будет двузначным числом. значит выбор невелик: либо 81 ,либо 92. Но сумма цифр 11 ! Значит искомое число будет 92 курицы!

Answer 2

Calculation of the Number of Chickens in the Farm

To determine the number of chickens in the small farm, we can use the information provided:

1. The sum of the digits in the number is 11. 2. The second digit is 7 less than the first digit. 3. The number of chickens exceeds the last single-digit number.

Let's break down the problem step by step:

1. Let's assume the number of chickens in the farm is represented by a two-digit number, where the first digit represents the tens place and the second digit represents the ones place.

2. We know that the sum of the digits in the number is 11. Let's represent the first digit as 'x' and the second digit as 'y'. Therefore, we have the equation:

x + y = 11

3. We also know that the second digit is 7 less than the first digit. This can be represented as:

y = x - 7

4. The number of chickens exceeds the last single-digit number. This means that the number of chickens is greater than 9.

Now, let's solve the equations to find the values of 'x' and 'y':

From equation 2, we can substitute the value of 'y' in equation 1:

x + (x - 7) = 11 2x - 7 = 11 2x = 18 x = 9

Substituting the value of 'x' in equation 2:

y = 9 - 7 y = 2

Therefore, the number of chickens in the farm is 92.

Increasing the Number of Chickens to 100

The owner of the farm plans to increase the number of chickens to 100 by the next year. Currently, the number of chickens is 92. To reach the target of 100 chickens, the owner needs to add 8 more chickens.

Note: It's important to note that the calculations above are based on the given information and assumptions. If there are any additional constraints or information, the calculations may vary.

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