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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