Aqil's father is $x^{2}$ years old while Aqil is $x$ years old now. In $5x$ years' time, Aqil'

Question

Aqil's father is $x^{2}$ years old while Aqil is $x$ years old now. In $5x$ years' time, Aqil's father is twice as old as him. Form an equation in $x$ and show that it reduces to $x^{2}-7x=0$ .[2] Solve the equation $x^{2}-7x=0$ .[2] Hence, find the age of Aqil's father now.[1]

Accepted Answer

(a) $x^2+5x=2(6x)$, hence $x^2-7x=0$ (b) $x=0$ or $x=7$ (c) $49$ years old

XMS 2EM WA2 2021 Q5

XMS 2EM WA2 2021 Q5

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