Question : If 4 litres of water is evaporated on boiling from 12 litres of salt solution containing 7 percent salt, the percentage of salt in the remaining solution is:
Option 1: 10.5%
Option 2: 11.5%
Option 3: 12%
Option 4: 13%
Answer (1)
9th Jan, 2024
Correct Answer: 10.5%
Solution :
In 12 litres of salt solution,
Amount of salt =
After evaporation, the solution left is (12 – 4) = 8 litres
Thus, percentage of salt in remaining solution
Hence, the correct answer is 10.5%.
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