A 120-litre solution of salt and water contains 25% salt. If 30 litres of water are added, what is the new percentage of salt in the solution?
Given:
Initial volume of solution = 120 litres
Initial percentage of salt = 25%
Volume of water added = 30 litres
Formula Used:
Percentage = (Part ÷ Total) × 100
Solution:
Find the volume of salt in the initial solution:
Calculate the new total volume of the solution after adding 30 litres of water:
120 + 30 = 150
Calculate the new percentage of salt in the mixture:
Final Answer
So the correct answer is (a)
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