Question

How many kg of pure salt must be added to 8 kg of a 30% solution to obtain a 35% solution?

Answer 1

`1 1/3`kg of pure salt has to be added.

Explanation:

In 30% Solution 8 kg salt exists. So to make 35%solution total salt required is `8/30*35` = `9 1/3`kg of salt. So `1 1/3`kg of pure salt has to be added.[Answer]