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A rope 40 feet long is cut into two pieces. If one piece is

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A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 26 Aug 2012, 03:05
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The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Project

A rope 40 feet long is cut into two pieces. If one piece is 18 feet longer than the other, what is the length, in feet, of the shorter piece?

(A) 9
(B) 11
(C) 18
(D) 22
(E) 29

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Re: A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 26 Aug 2012, 03:06
SOLUTION:

A rope 40 feet long is cut into two pieces. If one piece is 18 feet longer than the other, what is the length, in feet, of the shorter piece?

(A) 9
(B) 11
(C) 18
(D) 22
(E) 29

Say the length of the shorter piece is x feet, then the length of the longer piece would be x+18 feet. Since the length of the rope is 40 feet, then x+(x+18)=40 --> x=11.

Answer: B.
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Re: A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 26 Aug 2012, 08:18
Let x be the length of the shorter one.
The longer one will be x+18
Therefore, x+x+18=40..> x=11
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Re: A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 27 Aug 2012, 11:10
x+x+18 = 40.
So x=11 feet.
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Re: A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 31 Aug 2012, 02:03
SOLUTION:

A rope 40 feet long is cut into two pieces. If one piece is 18 feet longer than the other, what is the length, in feet, of the shorter piece?

(A) 9
(B) 11
(C) 18
(D) 22
(E) 29

Say the length of the shorter piece is x feet, then the length of the longer piece would be x+18 feet. Since the length of the rope is 40 feet, then x+(x+18)=40 --> x=11.

Answer: B.
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DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set. NEW!!!


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Re: A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 10 Nov 2012, 03:26
Or
(40-s)-s = 18
s = 11
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Re: A rope 40 feet long is cut into two pieces. If one piece is [#permalink] New post 19 Dec 2012, 03:36
Let s be the shorter piece
Let the longer piece be s + 18

s + s + 18 = 40
2s + 18 = 40
2s = 40 - 18 = 22
s = 11

Answer: B
Re: A rope 40 feet long is cut into two pieces. If one piece is   [#permalink] 19 Dec 2012, 03:36
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