Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
15 Aug 2019, 00:02
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
51% (01:51) correct
49%
(02:34)
wrong
based on 53
sessions
History
Date
Time
Result
Not Attempted Yet
A road declines 30° from horizontal over a distance of 60 feet, as measured by a tape on the road's surface. At the base of the incline is a hole 7 feet deep. What is the difference in elevation between the top of the incline and the bottom of the hole?
A. 126
B. 37
C. 23
D. \(7 + 60\sqrt{3}\)
E. \(7 + 30\sqrt{3}\)
A. 126
B. 37
C. 23
D. \(7 + 60\sqrt{3}\)
E. \(7 + 30\sqrt{3}\)
15 Aug 2019, 00:46
Kudos
Bookmarks
Angle of decline made with the horizontal is 30, meaning angle of decline made with the vertical is 60.
We know from the question stem that the declined road is 60ft long.
The vertical distance of the inclined road can be obtained as follows: 60sin30 or 60cos60 = 30ft.
Distance from the start of the decline to the bottom of the hole = 7+30 = 37ft.
Answer imo is B.
Posted from my mobile device
We know from the question stem that the declined road is 60ft long.
The vertical distance of the inclined road can be obtained as follows: 60sin30 or 60cos60 = 30ft.
Distance from the start of the decline to the bottom of the hole = 7+30 = 37ft.
Answer imo is B.
Posted from my mobile device
Archit3110
Major Poster
15 Aug 2019, 08:08
Kudos
Bookmarks
Bunuel
the length of decline is 60 ft and angle corresponding to it is 90 ; we get a 30:60:90 ; so the height of decline ; 30 feet
base of incline would be the point at the end of 60 feet decline dip ; which is 7 feet
so difference between top of incline and bottom of hole ; 30-7 ;23 feet
IMO C
