Question
If β#β denotes β-β, @ denotes βΓβ, β$β
denotes β+β and β%β denotes βΓ·β, thenΒ 20 $ 15 # 10 @ 45 % 15Solution
20 $ 15 # 10 @ 45 % 15Β = 20 + 15 β 10 Γ 45 Γ· 15 = 20 + 15 β 10 Γ 3 = 20 + 15 β 30 = 35 β 30Β = 5Β
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