Question

Перше число на 40% більше за друге, а їх середнє арифметичне дорівнює36.Знайдіть ці числа.

Answer 1

Пусть одно из чисел х, значит, второе 1,4х. Составим уравнение: (х + 1,4х) : 2 = 36; 2,4х = 36 * 2; 2,4х = 72; х = 30. 30 * 1,4 = 42. Ответ: 30 и 42.

Answer 2

Given that the first number is 40% greater than the second number, and their arithmetic mean is equal to 36, we can set up the following equations:

Let the second number be represented by x. The first number is then 1.4x (since it is 40% greater than x).

The arithmetic mean of the two numbers is given by the formula: (x + 1.4x) / 2 = 36

Simplifying the equation, we have: (2.4x) / 2 = 36 1.2x = 36

Now, we can solve for x by dividing both sides of the equation by 1.2: x = 36 / 1.2 x = 30

So, the second number is 30.

To find the first number, we can substitute the value of x back into the equation: 1.4x = 1.4 * 30 = 42

Therefore, the first number is 42.

In summary, the first number is 42 and the second number is 30.