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13 Jun 2019, 00:38
Kudos
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
57% (01:35) correct
43%
(01:34)
wrong
based on 166
sessions
History
Date
Time
Result
Not Attempted Yet
A ladder with 13 meters of length leans on the wall. If the distance between the bottom of the ladder and the wall is 5 meters, what is the angle between the ground and the ladder?
A. 0 to 15 degrees
B. 15 to 30 degrees
C. 30 to 45 degrees
D. 45 to 60 degrees
E. 60 to 90 degrees
A. 0 to 15 degrees
B. 15 to 30 degrees
C. 30 to 45 degrees
D. 45 to 60 degrees
E. 60 to 90 degrees
firas92
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Joined: 16 Jan 2019
Last visit: 02 Dec 2024
Posts: 616
Given Kudos: 142
Location: India
Concentration: General Management
Schools: Tepper '23 (M$) Foster '23 (D)
GMAT 1: 740 Q50 V40
WE:Sales (Other)
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13 Jun 2019, 01:39
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The ladder forms a 5-12-13 right angled triangle with the wall and the ground.
Since the ladder's length and the distance between the top of the ladder and the ground are almost equal (12 & 13), the angle between the ground and the ladder must be less than and close to 90 degrees
Answer is (E)
Hit Kudos if this helped!
Since the ladder's length and the distance between the top of the ladder and the ground are almost equal (12 & 13), the angle between the ground and the ladder must be less than and close to 90 degrees
Answer is (E)
Hit Kudos if this helped!
General Discussion
Bunuel
The ladder will form a right angled triangle of lengths, 5 meters,12 meters, 13 meters
Applying sine rule.
((a)/sin(A))= (b/(sin B))
13/sin 90= 12 /sin B
Sin B=12/13
B= sin inverse of (12/13)
B=67.37 degrees
IMO the answer is E
