CEMC Cayley, 2007

Algebra Difficulty 1.0 Junior Find the answer Canada

If $a = 2$ and $b = 5$ , which of the following expressions has the greatest value?

(A) $\dfrac{a}{b}$ (B) $\dfrac{b}{a}$ (C) $a - b$ (D) $b - a$ (E) $\dfrac{1}{2}a$

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