It is currently 20 Oct 2017, 22:35

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 boat can travel 1.5 times the distance down the stream than up the

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

Hide Tags

Manager
Manager
User avatar
Joined: 25 Jan 2010
Posts: 109

Kudos [?]: 237 [0], given: 40

Location: Calicut, India
A boat can travel 1.5 times the distance down the stream than up the [#permalink]

Show Tags

New post 05 Aug 2011, 14:31
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

95% (01:28) correct 5% (00:00) wrong based on 21 sessions

HideShow timer Statistics

A boat can travel 1.5 times the distance down the stream than up the stream in the same time. If the speed of the current is 3 KMPH, Find the speed of the boat in still water

A) 5
B) 10
C) 15
D) 20
E) 25
[Reveal] Spoiler: OA

_________________

If u think this post is useful plz feed me with a kudo

Kudos [?]: 237 [0], given: 40

1 KUDOS received
Senior Manager
Senior Manager
User avatar
Joined: 28 Jun 2009
Posts: 440

Kudos [?]: 193 [1], given: 46

Location: United States (MA)
Re: A boat can travel 1.5 times the distance down the stream than up the [#permalink]

Show Tags

New post 05 Aug 2011, 14:45
1
This post received
KUDOS
Answer is C.

Simple question, messy language.

Lets say boat's speed is B and current's speed is C.

Upstream speed : B - C
Downstream speed : B + C

Distance will be the same both times. lets say D.
given : time it takes upstream = 1.5 times time it takes downstream

D/(B + C) = 1.5 * [D/(B - C)]

Solving B = 5 C

given : C is 5 KMPH
So B is 15 KMPH

Kudos [?]: 193 [1], given: 46

2 KUDOS received
Manager
Manager
avatar
Joined: 14 Oct 2009
Posts: 57

Kudos [?]: 11 [2], given: 1

Location: India
Re: A boat can travel 1.5 times the distance down the stream than up the [#permalink]

Show Tags

New post 06 Aug 2011, 01:33
2
This post received
KUDOS
I would rather use the answer options provided and see how it fits in, starting at middle option, 15+3, 15-3 gives ratio of 1.5.

Kudos [?]: 11 [2], given: 1

1 KUDOS received
Senior Manager
Senior Manager
User avatar
Status: mba here i come!
Joined: 07 Aug 2011
Posts: 261

Kudos [?]: 1227 [1], given: 48

GMAT ToolKit User
Re: A boat can travel 1.5 times the distance down the stream than up the [#permalink]

Show Tags

New post 21 Aug 2011, 10:44
1
This post received
KUDOS
d = st

(b+3)t = 2/3*(b-3)t

b=15 .......... ANS
_________________

press +1 Kudos to appreciate posts
Download Valuable Collection of Percentage Questions (PS/DS)

Kudos [?]: 1227 [1], given: 48

Re: A boat can travel 1.5 times the distance down the stream than up the   [#permalink] 21 Aug 2011, 10:44
Display posts from previous: Sort by

A boat can travel 1.5 times the distance down the stream than up the

  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®.