The above figure contains three squares with areas of 100 m2, 16 m2 and 49 ml lying side by side. By how much should the area of the middle square be reduced in order that the total length PQ of the resulting three squares is 19 m?

A) 2 m

B) 2 m2

C) 4 m2

D) 12 m2

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 1998 (GS Paper I)