There are two buildings on MNCs (represented by AP and BQ) on opposite sides of a 20 m wide road at point A and B respectively. There is a point R on road as shown below.
(i) What is the area of trapezium ABQP in sq m?

a) 280 b)380 c)440 d)220

(ii) What is the value of PQ?
a) 20.88 m b)26.88 m c)19.88 m d)29.18 m

(iii) Find the value(s) of x for minimum value of S(x):
a) 10
b) 0
c) 4
d) -10