#### Explanation:

Suppose Jenny works $y$ hours per week. Then Adam works $\left(y + 8\right)$ hours per week. Since they earn the same amount of salary,

$x \left(y + 8\right) = \left(x + 2\right) y$

$x y + 8 x = x y + 2 y$

$4 x = y$

Then we know

$x \left(y + 8\right) = 192$

$x \left(4 x + 8\right) = 192$

$x = 6$

So

$y = 4 x$

$y = 24$

But Adam works $\left(y + 8\right)$ hours per week, so he works $32$ hours.