Home » Aptitude » Height and Distance

A flagstaff 17.5 m high casts a shadow of length 40.25 m. What will be the height of a building, which casts a shadow of length 28.75 m under similar conditions ?  

Correct Answer: 12.5 cm

Explanation:

Let the required height of the building be x meter


More shadow length, More height(direct proportion)


Hence we can write as


(shadow length) 40.25 : 28.75 :: 17.5 : x
⇒ 40.25 × x = 28.75 × 17.5
⇒ x = 28.75 × 17.5/40.25
= 2875 × 175/40250
= 2875 × 7/1610
= 2875/230
= 575/46
= 12.5 cm


← Previous Question Next Question→

More Questions from Height and Distance

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion