A vertical pillar 42 cm long casts a 35 cm long shadow. At the same time, a tower casts a shadow 25 m long. Find the height of the tower.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 30 m.
In such questions we know that,
Height of pillar/Shadow of pillar = Height of tower/Shadow of tower
⇒ 42/35 = x/(25 × 100)
⇒ 42/35 = x/2500
⇒ x = 42/35 × 2500
⇒ x = 6/5 × 2500
⇒ x = 6 × 500
⇒ x = 3000 cm or x = 30 m