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GMAT Test M01 Master Thread - All discussions

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GMAT Test M01 Master Thread - All discussions [#permalink] New post 17 May 2009, 08:24
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Last edited by bb on 09 Jun 2009, 17:00, edited 1 time in total.
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Re: GMAT Test M01 Master Thread - All discussions [#permalink] New post 29 Jan 2010, 19:54
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Hi guys,

Sorry, couldn't see the discussion for Q7 in M01 and neither could add the discussion anywhere else.

Although I answered this question correctly, I need a help in solving this problem in the quicker way

Question Number 7

A ship is transporting several cats and a crew (sailors, a cook, and a one-legged captain) to a nearby port. If these passengers combined have 15 heads and 41 legs, then how many cats is the ship transporting?


* 3
* 5
* 6
* 7
* 8

_______________

My explanation for this question is:
Let's denote A- cats, B- Sailors ( Don't fall into trick , as Sailors is in plural), C- cook =1, and D- captain-=1 ( and one legged)
thus we have : a+b+1+1= a+b+2 people on the board
We know that there are 15 Heads in total THUS,
a+b+2=15 heads
or a+b=13
or b=13-a

We also know that there are 41 legs in total,
Bear in mind that cats ( A) have 4 legs, and captain has 1 leg , equations is as follows:
4a+2b+2+1=41
4a+2b=38
Substitute from 1st equation:
2(2a+b) =38
2a+b=19
2a+(13-a)=10
a=6
thus C

IF you have any shorter solutions please share !

Thanks in advance :o
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TimurGMAT CRASHER

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Re: GMAT Test M01 Master Thread - All discussions [#permalink] New post 14 Jan 2012, 20:36
Q# 1 M01

What is the value of x?

1. 6x+12y=36
2. 4y+2x=12

 Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient
 Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient
 BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
 EACH statement ALONE is sufficient
 Statements (1) and (2) TOGETHER are NOT sufficient
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Re: GMAT Test M01 Master Thread - All discussions [#permalink] New post 14 Jan 2012, 21:52
M 01 q 25 -

Is x > y
1. |X| > |Y
2. X / Y > 0
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Re: GMAT Test M01 Master Thread - All discussions [#permalink] New post 14 Jan 2012, 22:00
M01

Is 143 / z an integer?
1. Z is prime number
2. 8 < z < 17

Was caught in one trap to find the value of Z but we have to find if 143 / z is an integer so C is the answer.
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Re: GMAT Test M01 Master Thread - All discussions [#permalink] New post 14 Jan 2012, 22:12
Dint find any link for this question so posting it here to start the discussion.

Train A leaves the Keleti station in Budapest at 5:00PM and travels to Moscow at the speed of 50 mph. If train B leaves Keleti for Moscow some time later on the same day, at what time will train B overtake train A? The distance between the cities is 970 miles.

1. Train B leaves Keleti at 6:00PM.
2. Train A travels at the speed of train B.
Re: GMAT Test M01 Master Thread - All discussions   [#permalink] 14 Jan 2012, 22:12
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