Trigonometric Equations Question 323

Question: A ladder 5 metre long leans against a vertical wall. The bottom of the ladder is 3 metre from the wall. If the bottom of the ladder is pulled 1 metre farther from the wall, how much does the top of the ladder slide down the wall

[AMU 2000]

Options:

A) 1 m

B) 7 m

C) 2 m

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

  • From first case, From second case,
    $ \therefore AD=4-3=1m. $