Question
Find the value of βxβ if x% of 600 + {1440 Γ· x of
16} Γ 8 = 156Solution
x% of 600 + {1440 Γ· x of 16} Γ 8 = 156
Or, 6x + 720/x = 156
Or, x2Β β 26x + 120 = 0
Or, x2Β β 20x β 6x + 120 = 0
Or, x(x β 20) β 6(x β 20) = 0
Or, (x β 6)(x β 20) = 0
Or, x = 6 or x = 20
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