One litre of water is evaporated from a 6 litre solution containing 4% sugar. The percentage of sugar in the remaining solution is:

• Sugar solution = 6 litres
  concentration of sugar is 4% which is about 0.24
  
  since 1 litre water has evaporated still same amount of sugar will remain in the solutions of 5 litre
  so concentration now is 0.24 / 5 = 4.8 %
  
  Answer for 1 is (c) 4.8 %
  
  in the same approach
  salt % = 150g of salt in 75% of water remaining
  150/7.5 = 2 %
• 8 years agoHelpfull: Yes(4) No(0)
• 4.8% sugar
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• (6*4)/100=6/25
  so (5*X)//100=6/25
  so x=4.8%
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• At first solution contains 5.76lt water and .24lt of sugar, after 1lt water evaporated the percentage of sugar in solution is (.24÷5)×100=4.8%
• 6 years agoHelpfull: Yes(0) No(0)