thirty litres of water is added to 150 litres of 20% solution of alcohol in water.the resulting strenght of alcohol is

• 20% solution of alcohol in water means 30 litres of alcohol & 120 litres of water.
  Then 30 litres of water is added, so the solution now contains 150 litres of water and 30 litres of alcohol.
  Therefore, the resulting strength of alcohol is 30*100/180=16.67%
• 11 years agoHelpfull: Yes(28) No(0)
• 20% of 150 is 30 liters
  and now 30 liter is added to that solution so total 180 liters
  
  so 30 liters in 180 liters means (100*30)/180 = 16.667
• 11 years agoHelpfull: Yes(14) No(2)
• 30 litre is added means 150+30=180
  and 20% of 180 is 36 litre alcohol is present
• 11 years agoHelpfull: Yes(3) No(14)
• n square.=>n*n=n2
• 11 years agoHelpfull: Yes(1) No(1)
• 20% of 150 liters =30 litre
  therefore 30 liter of alcohol is present in 150 liters
  30 liter of water is added to 150 liter=150+30=180
  therefore strength of alcohol=30/180 *100=16 2/3%
• 11 years agoHelpfull: Yes(0) No(1)