Subject: General Aptitude · Chapter: Heights and Distances · Exam: 2016 · Marks: · Difficulty:
The angles of elevation of the top of a tower from two points P and Q at distances $m^{2}$ and $n^{2}$ respectively, from the base and in the same straight line with it are complementary. The height of the tower is
(a)$(m n)^{1 / 2}$
(b)$m n^{1 / 2}$
(c)$m^{1 / 2} n$
(d)$m n$
Answer
Answer (as printed): D
Explanation
The pattern is $x^{2}+1$, where $x=1,2,3,4,5,6,7,8$ etc. But, 64 is out of pattern.
Explanation as extracted from the printed page; notation may be imperfect.