Question

К 100 граммам 20% солевого раствора добавили 100 грамм соли, скольки процентный солевой раствор получился?

Answer 1

0,2*100 - количество соли в 100 гр 20%-ого раствора
0,2*100 + 100 = х*(100+100)
120 = 200х
х = 200/120
х = 0,6
0,6 - 60% -ый раствор

Answer 2

Calculation of the Salt Solution

To calculate the percentage of the salt solution after adding 100 grams of salt to 100 grams of a 20% salt solution, we need to consider the initial amount of salt and the total volume of the solution.

Let's break down the calculation step by step:

1. Calculate the initial amount of salt in the 20% salt solution: - The initial solution is 100 grams of a 20% salt solution. - 20% of 100 grams is 20 grams of salt.

2. Calculate the total amount of salt after adding 100 grams of salt: - We added 100 grams of salt to the initial 20 grams of salt. - The total amount of salt is now 20 grams + 100 grams = 120 grams.

3. Calculate the total volume of the solution: - The initial solution is 100 grams of a 20% salt solution. - We added 100 grams of salt to it, so the total volume of the solution is 100 grams + 100 grams = 200 grams.

4. Calculate the percentage of the salt solution: - Divide the total amount of salt (120 grams) by the total volume of the solution (200 grams). - Multiply the result by 100 to get the percentage. - The percentage of the salt solution after adding 100 grams of salt is 60%.

Please note that the calculation assumes that the added salt dissolves completely in the solution and that the volume of the solution remains constant.