What is the probability that a randomly selected student prefers reading over watching TV, given that there are 20 students who prefer reading, 30 students who prefer watching TV, and altogether 100 students?
+
What is the result of (3^2 * 5^3) / (3^4 * 5^2)?
+
Math Question: Solve the cubic equation x^3 - 5x^2 - 4x + 20 = 0.