A 20 L mixture contains milk and water in the ratio 2:3. How much milk must be added to make the ratio 4:3?

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Accepted Answer

1. Find milk now: $20	imes\frac{2}{5}=8$ L.
2. Water is $20-8=12$ L.
3. Add $x$ L milk. Set $\frac{8+x}{12}=\frac{4}{3}$ so $8+x=16$.
4. So $x=8$ L. **Answer (b).**

FINAL_ANSWER: b

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