- A 12 liters
- B 20 liters
- C 25 liters
- D 10 liters
Answer:
D
Total 150 liters of mixture exist.
Number of liters of water in the mixture is = 20% of 150 = 20/100 * 150 = 30 liters.
X liters of water added to the mixture to make water 25% of the new mixture.
Total amount of water becomes (30 + X) and total volume of mixture is (150 + X)
(30 + X) = 25/100 * (150 + X)
=> 120 + 4X = 150 + X
=> X = 10 liters.