CAT Exam 2021 Slot 3 Solved Paper

We need to find out p.
$∠\ADE = 180 - 2x $
$∠\BDF = 180 - 2y$
Now, $180 - 2y + p + 180 - 2x = 180$
$p = 2x + 2y - 180 $
Also, $x + y + 50 = 180$
$x + y = 130 $
$p = 260 - 180 = 80 \degrees$.