Challenge Level

On Saturday, Asha and Kishan's grandad took them to a Theme Park.

In total they spent $\frac{1}{5}$
^{}_{}of the day queuing for rides.

They worked out that $\frac{3}{4}$ of the rest of their time there was spent enjoying the rides.

Of the time left,^{}_{}
$\frac{1}{2}$ was spent having lunch.

The 3-d cinema show took up^{}_{} $\frac{2}{3}$ of the
rest of the day.

Finally there were $10$ minutes left to go to the gift shop before
they went home.

How long were Asha and Kishan at the Theme Park?