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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 :

  1. A 20 L
  2. B 40 L
  3. C 30 L
  4. D 60 L
Verified Solution

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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