Sea water contains 6% salt. How much water do you need to take to get 42kg of salt?

1. From the data presented in the problem statement, we know that seawater contains 6% layers.

2. Let’s calculate how much water is required to take in order to get 42 kg of salt. To do this, create a record:

42 kg – 6%;

x kg – 100%.

42 * 100 = 6 * x;

6 * x = 4200;

x = 4200/6;

x = 700 kg.

Answer: In order to get the required amount of salt, you need to take 700 kg of sea water.