Question

Three people Aditi, Sharique And Nemat are Standing in a queue.
I. There are 5 people between Aditi and Sharique
II. There are 8 people between Sharique and Nemat
III. Aditi is the last in the queue
A. 19
B. 17
C. 18
D. 20
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Answer 1

x2= (3q + 2)2 = (3q)2+22+2×3q×2 = 9q2 + 4 + 12q = 3 (3q2 + 4q + 1)+1= ??