Question

Среднее арифметическое 3-х чисел равно 65. К данной группе чисел добавили число 33. Чему теперь равно среднее арифметическое?

Answer 1

Calculation of the New Arithmetic Mean

To calculate the new arithmetic mean after adding the number 33 to a group of three numbers with an original arithmetic mean of 65, we can use the formula for the arithmetic mean:

Arithmetic Mean = (Sum of Numbers) / (Number of Numbers)

In this case, we have three numbers with an original arithmetic mean of 65. Let's assume these three numbers are x, y, and z. Therefore, we can write the equation as:

65 = (x + y + z) / 3

To find the new arithmetic mean after adding the number 33, we need to consider that the total number of numbers will now be 4. Therefore, the equation becomes:

New Arithmetic Mean = (x + y + z + 33) / 4

To solve for the new arithmetic mean, we need to know the values of x, y, and z. Unfortunately, the given information does not provide these values. If you have the values of x, y, and z, please provide them so that we can calculate the new arithmetic mean for you.