CUET · MATHS · PYQ PAPER 2025
From a container full of milk, 10 liters (1) was drawn and replaced by water. This process is repeated one more time. The ratio of quantity of milk and water left in the container is \(4: 5\). Then the capacity of the container is :
- A 20 L
- B 40 L
- C 30 L
- D 60 L
Answer & Solution
Correct Answer
(C) 30 L
Step-by-step Solution
Detailed explanation
\( \frac{\text{Milk}}{\text{Total}} = \left(1 - \frac{\text{Drawn}}{\text{Capacity}}\right)^{\text{Times}} \) \( \frac{4}{4+5} = \left(1 - \frac{10}{C}\right)^2 \) \( \frac{4}{9} = \left(1 - \frac{10}{C}\right)^2 \) \( \frac{2}{3} = 1 - \frac{10}{C} \)…
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