Mathematics · Ratio and Proportion
A solution of volume 40 litres has dye and water in the proportion 2 : 3. Water is added to the solution to change this proportion to 2 : 5. If one-fourth of this diluted solution is taken out, how many litres of dye must be added to the remaining solution to bring the proportion back to 2 : 3?
- 110
- 28✓
- 36
- 45
Correct answer
8
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