Question

Купили несколько ручек красного и синего цвета. Синих ручек было куплено 36, что составило 3 четвертых всех купленных ручек. Сколько всего ручек купили? Сколько было куплено красных ручек?

Answer 1

Question Analysis

To answer the question, we need to determine the total number of pens purchased and the number of red pens purchased. We are given that 36 blue pens were purchased, which represents 3/4 of all the pens bought.

Answer

To find the total number of pens purchased, we can use the information that 36 blue pens represent 3/4 of all the pens. Let's denote the total number of pens as x. We can set up the following equation:

(3/4) * x = 36

To solve for x, we can multiply both sides of the equation by 4/3:

x = (4/3) * 36

Calculating this, we find that the total number of pens purchased is 48.

To find the number of red pens purchased, we can subtract the number of blue pens from the total number of pens:

48 - 36 = 12

Therefore, a total of 48 pens were purchased, with 12 of them being red pens.