Question

В трех коробках 135 карандашей причем во второй их три раза больше чем в 1 of 3 в 2 раза меньше чем в первой Сколько карандашей лежит в 3 коробки

Answer 1

3х+х/2+х=135 

Мой вариант решения . Если есть ответы , там посмотри

Answer 2

Problem Analysis

We are given three boxes of pencils, with certain relationships between the number of pencils in each box. We need to determine the number of pencils in the third box.

Given Information

- There are 135 pencils in total. - The second box contains three times as many pencils as the first box. - The third box contains half as many pencils as the first box.

Solution

Let's assign variables to represent the number of pencils in each box: - Let x be the number of pencils in the first box. - The second box contains three times as many pencils as the first box, so it contains 3x pencils. - The third box contains half as many pencils as the first box, so it contains (1/2)x pencils.

We can set up an equation to represent the total number of pencils: x + 3x + (1/2)x = 135

Simplifying the equation: (6/2)x + 3x + (1/2)x = 135 (9/2)x = 135

To solve for x, we can multiply both sides of the equation by (2/9): x = (135 * 2) / 9 x = 30

Now that we know the number of pencils in the first box, we can find the number of pencils in the third box: (1/2)x = (1/2) * 30 = 15

Therefore, there are 15 pencils in the third box.

Answer

There are 15 pencils in the third box.