Bunuel wrote:

A ladder that is 10 meters long is leaning against a wall. The base of the ladder is on the floor 6 meters from the wall. What is the distance, in meters, from the bottom of the wall

to the point where the ladder touches the wall?

(A) 6

(B) 8

(C) 9

(D) 10

(E) 2√34

The ladder, the base of the floor and the wall makes a right angle triangle. say ABC

Now AB = 10 ,

BC = 6

CA = ?

We should remember the Pythagorean triplet to solve it faster.

So, 3,4,5 is a Pythagorean triplet and their multiples is also a Pythagorean Triplet

i.e. 6,8,10.

So, CA = 8

Answer B
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