It is currently 23 Feb 2018, 04:34

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

A spaceship that is traveling 3,600 kilometers per hour can make a cir

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Manager
Manager
avatar
G
Joined: 02 Jun 2015
Posts: 192
Location: Ghana
Premium Member
A spaceship that is traveling 3,600 kilometers per hour can make a cir [#permalink]

Show Tags

New post 05 Mar 2017, 13:32
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

62% (01:36) correct 38% (01:01) wrong based on 86 sessions

HideShow timer Statistics

A spaceship that is traveling 3,600 kilometers per hour can make a circular orbit around a spherical planet in 4 minutes. Approximately how far is the spaceship from the center of the planet?

A) 24,000 kilometers
B) 1,200 kilometers
C) 240 kilometers
D) 120 kilometers
E) 40 kilometers
[Reveal] Spoiler: OA

_________________

Kindly press kudos if you find my post helpful

Senior Manager
Senior Manager
avatar
G
Joined: 24 Apr 2016
Posts: 333
Re: A spaceship that is traveling 3,600 kilometers per hour can make a cir [#permalink]

Show Tags

New post 05 Mar 2017, 19:48
The spaceship complete a circle at the speed of 3600 Km/hr in 4 mins.

Therefore the distance covered in 4 mins is the circumference of the planet = (3600 * 4)/60 = 240 Kms.

The radius of the spherical planet will be equal to the distance of the spaceship from the center of the planet.

2 * 22/7 * R = 240

Solving the above, R comes to 38.1. The closes approximation from the answer choices is E (40).

Answer is E.
Expert Post
Target Test Prep Representative
User avatar
S
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2016
Re: A spaceship that is traveling 3,600 kilometers per hour can make a cir [#permalink]

Show Tags

New post 24 Jan 2018, 09:38
duahsolo wrote:
A spaceship that is traveling 3,600 kilometers per hour can make a circular orbit around a spherical planet in 4 minutes. Approximately how far is the spaceship from the center of the planet?

A) 24,000 kilometers
B) 1,200 kilometers
C) 240 kilometers
D) 120 kilometers
E) 40 kilometers


Let’s first determine the circumference C of the circular path of the spaceship around the planet:

C = 3600 km/hr x 4 min

C = 3600 km/hr x 4/60 hr

C = (3600 x 4/60) km

C = 240 km

Now we have to determine the radius of the orbit since that is the distance the spaceship is from the center of the plant:

240 = 2πr

240/(2π) = r

Since π ≈ 3, then r ≈ 240/6 = 40 km.

Answer: E
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: A spaceship that is traveling 3,600 kilometers per hour can make a cir   [#permalink] 24 Jan 2018, 09:38
Display posts from previous: Sort by

A spaceship that is traveling 3,600 kilometers per hour can make a cir

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.