A solution of water and sugar contains 10% sugar the solution weight is 8kg when 2kg of water is added to this solution the percentage of sugar becomes?

10%

12%

18%

Total weight of solution is 8 kg

Sugar % = 10%

Mass of sugar = 10 % 0f 8 = 0.8

Amount of water = Total weight of solution – Mass of sugar

Amount of water = 8 kg – 0.8 kg

Amount of water = 7.2 kg

Now 2 kg is added to the solution

So, new amount of solution = 8 kg +2 kg = 10 kg

So, the percentage of sugar becomes= 0.8/10 x 100% = 8%