Question

# Roy is 11 years old and his uncle is 59 years old. How many years ago was Roy’s uncle 7 times as old as Roy?

Hint: We have to observe the relationship between the ages of Roy and his uncle to solve this problem.

$\Rightarrow 59 - y = 7(11 - y)$
\eqalign{ & \Rightarrow 6y = 18 \cr & \Rightarrow y = \dfrac{{18}}{6} \cr}
$\Rightarrow y = 3$
$\therefore$ 3 years ago Roy’s uncle was 7 times as old as Roy.