Q:
      
      
         
            
A mixture of 150 liters of wine and water contains 20% water. How much more water should be added so that water becomes 25% of the new mixture?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: A) 10 liters         
         
Explanation: Number of liters of water in 125 liters of the mixture = 20% of 150 = 1/5 of 150 = 30 liters
 
Let us Assume that another 'P' liters of water are added to the mixture to make water 25% of the new mixture. So, the total amount of water becomes (30 + P) and the total volume of the mixture becomes (150 + P)
 
Thus, (30 + P) = 25% of (150 + P)
 
Solving, we get P = 10 liters
       
      
      
      
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