QUESTION: A tank A contains a mixture of 10 L of water with 5 L of alcohol. In another tank B the mixture is 12 L of water and 3 L of alcohol. What number of liters must be drawn from each tank to obtain an 8 L solution containing 25% alcohol by volume? From tank A must be removed ____ L and from tank B ____ L

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.