If the angles of quadrilateral are (p + 10)^\circ, (2p - 30)^\circ, (3p + 20)^\circ and 4p^\circ, find p.
A
63
B
40
C
36
D
28
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
The sum of angles in a quadrilateral = 360^\circ
\(\therefore (p + 10) + (2p - 30) + (3p + 20) + 4p = 360\)
\(10p = 360^\circ \implies p = \frac{360}{10} = 36^\circ\)
Source: Myschool Past Questions Archive (Record #31335)