GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 19 Aug 2019, 23:17

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

If some of the passengers of the boat Silver Trout board the

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

Hide Tags

Find Similar Topics 
Intern
Intern
avatar
Joined: 24 May 2013
Posts: 22
Concentration: Operations, General Management
WE: Engineering (Energy and Utilities)
If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 11 Jun 2014, 02:29
3
6
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

63% (01:44) correct 38% (01:06) wrong based on 208 sessions

HideShow timer Statistics

If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has.
(2) The Lovely Mary will have 50% more passengers than it currently has.
Intern
Intern
avatar
Joined: 24 May 2013
Posts: 22
Concentration: Operations, General Management
WE: Engineering (Energy and Utilities)
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 11 Jun 2014, 02:42
X on boat S
Y on boat L


I) X/4 ---- i.e now, Y+X/4

Ans C
II) Y+X/4 = 3Y/2

means X=2Y
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 57087
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 11 Jun 2014, 02:42
2
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.
_________________
Intern
Intern
avatar
S
Joined: 16 Apr 2017
Posts: 45
If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 12 Aug 2017, 11:01
Bunuel wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.


0.25*ST = 0.5 LM ===> ST/LM = 2/1 ===> therefore ST has more number of passengers after the change.But in your case they have equal number of passengers...what I am missing?
_________________
KUDOS please, if you like the post or if it helps :-)
Current Student
User avatar
B
Joined: 12 Feb 2015
Posts: 54
Location: India
GPA: 3.84
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 19 Aug 2017, 09:24
Bunuel wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.



Suppose i consider 100 persons on ST initially,so this means now there are 75 persons.Now on LM if 100 persons are there then after 50% increase the result will be 150.
On the contrary,if i consider 100 on ST so 75 left and 50 initially on LM then the result will be 75,so 75>75...NO

What am i missing,...?
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 57087
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 19 Aug 2017, 09:39
himanshukamra2711 wrote:
Bunuel wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.



Suppose i consider 100 persons on ST initially,so this means now there are 75 persons.Now on LM if 100 persons are there then after 50% increase the result will be 150.
On the contrary,if i consider 100 on ST so 75 left and 50 initially on LM then the result will be 75,so 75>75...NO

What am i missing,...?


You cannot consider both to have 100 passengers.

If ST = 100, the 25% = 25. Now, this 25 (according to the second statement) should comprise 50% of LM, so LM = 50. So, if 25 board LM instead of ST each will have 75.
_________________
Senior Manager
Senior Manager
User avatar
P
Joined: 29 Jun 2017
Posts: 438
GPA: 4
WE: Engineering (Transportation)
GMAT ToolKit User Reviews Badge
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 19 Aug 2017, 09:52
1
Ans is C
let x members on boat Silver Trout and y on Lovely Mary.
A is insufficient as it does not say anything about other boat and so AD ruled out
B is insufficient as same reason above

combine them

0.25x=.50y
x=2y
let straut has 10 member then mary will have 5
clearly this info is sufficient to judge which boat has max numbers of persons.

C is the answer
_________________
Give Kudos for correct answer and/or if you like the solution.
Manager
Manager
avatar
B
Joined: 11 Feb 2017
Posts: 185
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 22 Aug 2017, 02:08
Bunuel wrote:
himanshukamra2711 wrote:
Bunuel wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.



I DONT GET IT

I took an example and it doesnt give any answer

If C is correct then

Lets Assume

1) ST = 5000(Initially)
LM = 500(Initially)

Statement 1 ) will be 5000- 25% of 5000 = 3750 on ST
Statement 2 ) will be 500 + 50% of 500 = 750 on LM

Hence ST wins


2) ST = 500(Initially)
LM = 600(Initially)

Statement 1 ) will be 500- 25% of 500 = 375 on ST
Statement 2 ) will be 600 + 50% of 600 = 900 on LM

Hence LM wins


Can u explain why this example doesnt hold? Am I missing something?
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 57087
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 22 Aug 2017, 02:42
rocko911 wrote:
Bunuel wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.



I DONT GET IT

I took an example and it doesnt give any answer

If C is correct then

Lets Assume

1) ST = 5000(Initially)
LM = 500(Initially)

Statement 1 ) will be 5000- 25% of 5000 = 3750 on ST
Statement 2 ) will be 500 + 50% of 500 = 750 on LM

Hence ST wins


2) ST = 500(Initially)
LM = 600(Initially)

Statement 1 ) will be 500- 25% of 500 = 375 on ST
Statement 2 ) will be 600 + 50% of 600 = 900 on LM

Hence LM wins


Can u explain why this example doesnt hold? Am I missing something?


You cannot arbitrarily assume values for BOTH ST and LM. If you assume some value for ST it will define specific value for LM because 1/4 of ST = 1/2 of LM.

Hope it's clear.
_________________
Manager
Manager
avatar
B
Joined: 11 Feb 2017
Posts: 185
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 22 Aug 2017, 02:48
Bunuel wrote:
rocko911 wrote:
Bunuel wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has. Clearly insufficient.
(2) The Lovely Mary will have 50% more passengers than it currently has. Clearly insufficient.

(1)+(2) Say x passengers went from Silver Trout (ST) to Lovely Mary (LM). We know that this x is 1/4th of the total number of passengers on ST, thus originally there were 4x passengers. We also know that that x is 1/2 of the total number of passengers on LM, thus originally there were 2x passengers. After x left ST to LM, they'd have 3x passengers each. Sufficient.

Answer: C.

P.S. Not a GMAT type of questions: it's neither YES/NO nor a value question.



I DONT GET IT

I took an example and it doesnt give any answer

If C is correct then

Lets Assume

1) ST = 5000(Initially)
LM = 500(Initially)

Statement 1 ) will be 5000- 25% of 5000 = 3750 on ST
Statement 2 ) will be 500 + 50% of 500 = 750 on LM

Hence ST wins


2) ST = 500(Initially)
LM = 600(Initially)

Statement 1 ) will be 500- 25% of 500 = 375 on ST
Statement 2 ) will be 600 + 50% of 600 = 900 on LM

Hence LM wins


Can u explain why this example doesnt hold? Am I missing something?


You cannot arbitrarily assume values for BOTH ST and LM. If you assume some value for ST it will define specific value for LM because 1/4 of ST = 1/2 of LM.

Hope it's clear.


Thanks but i hope i dont encounter such question
Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2820
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 13 Dec 2017, 10:36
nidhi12 wrote:
If some of the passengers of the boat Silver Trout board the Lovely Mary instead, then which boat will have more passengers on it?

(1) The Silver Trout will have 25% fewer passengers than it currently has.
(2) The Lovely Mary will have 50% more passengers than it currently has.


We need to determine which boat, Silver Trout or Lovely Mary, will have more passengers if some of the passengers of the Silver Trout board the Lovely Mary instead.

Statement One Alone:

The Silver Trout will have 25% fewer passengers than it currently has.

This means the Silver Trout will have 75% of the passengers it currently has; however, without knowing anything about the Lovely Mary, we can’t answer the question. Statement one alone is not sufficient.

Statement Two Alone:

The Lovely Mary will have 50% more passengers than it currently has.

This means the Lovely Mary will have 150% of the passengers it currently has; however, without knowing anything about the Silver Trout, we can’t answer the question. Statement two alone is not sufficient.

Statements One and Two Together:

Let’s let S = the number of passengers the Silver Trout currently has and L = the number of passengers the Lovely Mary currently has. From both statements, we see that 0.25S = 0.50L since when 25% of the passengers on the Silver Trout board the Lovely Mary, the Lovely Mary gains 50% more passengers. Multiply both sides of the equation by 4 and we have S = 2L. Furthermore, if 25% of the passengers on the Silver Trout board the Lovely Mary instead, the Silver Trout will have 0.75S passengers and the Lovely Mary will have 1.5L passengers. However, since S = 2L, 0.75S = 0.75(2L) = 1.5L. We see that the Silver Trout will also have 1.5L passengers, which is the same number of passengers the Lovely Mary will have.

Answer: C
_________________

Jeffrey Miller

Head of GMAT Instruction

Jeff@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

Intern
Intern
avatar
S
Joined: 10 Jun 2016
Posts: 46
Schools: IIM-A"19
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 24 Dec 2017, 13:05
Hello All,

This is the way I understand
A has 400 passengers and 25% left, so it has 300
B is now 50% more than early means 100 is 50% of it early count. So its early count was 200. Now it has 300 and both have same.
Answer C
_________________
Thank You Very Much,
CoolKl
Success is the Journey from Knowing to Doing

A Kudo is a gesture, to express the effort helped. Thanks for your Kudos.
Intern
Intern
avatar
B
Joined: 16 Feb 2019
Posts: 23
CAT Tests
Re: If some of the passengers of the boat Silver Trout board the  [#permalink]

Show Tags

New post 08 Aug 2019, 01:32
If both of them have the same number of passengers, we wont be able to answer which is greater

Answer should be E?
GMAT Club Bot
Re: If some of the passengers of the boat Silver Trout board the   [#permalink] 08 Aug 2019, 01:32
Display posts from previous: Sort by

If some of the passengers of the boat Silver Trout board the

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





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