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Problem 17 - Entrance Test

If a = 2 and b = 3, what is the value of (a^2 + b^2) / (a + b)?

Correct: C

Given a = 2 and b = 3, we first calculate a^2 and b^2: a^2 = 2^2 = 4, b^2 = 3^2 = 9. Then, a^2 + b^2 = 4 + 9 = 13. Also, a + b = 2 + 3 = 5. Thus, (a^2 + b^2) / (a + b) = 13 / 5.