180 g of water was added to 620 g of the 40℅ salt solution. Find the percentage of salt in the new solution.
March 27, 2021 | education
| Find the amount of salt dissolved in water:
620 * 40/100 = 62 * 4 = 248 g of salt;
Find the total weight of the new solution:
620 + 180 = 800 g solution;
Let’s calculate the percentage of salt in the new solution:
248: 800 = 0.31 = 31%.
Answer: the new solution contains 31% salt.
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