JEE PYQ: Heights And Distances Question 10
Question 10 - 2019 (08 Apr Shift 2)
Two vertical poles of heights, 20 m and 80 m stand apart on a horizontal plane. The height (in meters) of the point of intersection of the lines joining the top of each pole to the foot of the other, from this horizontal plane is:
(1) $15$ (2) $18$ (3) $12$ (4) $16$
Show Answer
Answer: (4) $16$
Solution
$\frac{y}{80} + \frac{y}{20} = 1 \Rightarrow y = 16$ m.