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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 ?
A.
5 lit
B.
10 lit
C.
15 lit
D.
20 lit
View Answer
Correct choice: B
Explanation:
Number of liters of water in 150 liters of the mixture = 20% of 150 = 20/100 x 150 = 30 liters. P liters of water added to the mixture to make water 25% of the new mixture. Total amount of water becomes (30 + P) and total volume of mixture is (150 + P). (30 + P) = 25/100 x (150 + P) 120 + 4P = 150 + P => P = 10 liters.
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