How many Kilograms of Pure water is to be added to 100 Kilograms of a 30% saline solution to make it...

How many Kilograms of Pure water is to be added to 100 Kilograms of a 30% saline solution to make it a 10% saline solution.

Answer/Solution

200

Steps/Work

Let x be the weights, in Kilograms, of pure water to be added. Let y be the weight, in Kilograms, of the 10% solution. Hence
x + 100 = y
x = 200 Kilograms.
Answer B

Other Calculator / Auto Solver

How many kilograms of pure water is to be added to kilograms of a % saline solution to make it a % saline solution.

Calculated Answer

200

Step by Step Solution

In order to solve problem, you must evaluate (n₀ * n₁ / 100) / (n₂ / 100) - n₀.

n₀ =	100
n₁ =	30
n₂ =	10

(n₀ * n₁ / 100) / (n₂ / 100) - n₀
Evaluate n₁ / 100 = 0.3
(n₀ * 0.3) / (n₂ / 100) - n₀
Evaluate n₀ * 0.3 = 30
30 / (n₂ / 100) - n₀
Evaluate n₂ / 100 = 0.1
30 / 0.1 - n₀
Evaluate 30 / 0.1 = 300
300 - n₀
Evaluate 300 - n₀ = 200
200
The answer to the problem and the result of (n₀ * n₁ / 100) / (n₂ / 100) - n₀ is 200

Quiz

Answer/Solution

Steps/Work

Other Calculator / Auto Solver

Calculated Answer

Step by Step Solution