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didieravoaka
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Hi didieravoaka,
Do you have a question about this prompt?
GMAT assassins aren't born, they're made,
Rich
length
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Source: Beat The GMAT — Data Sufficiency |
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800_or_bust
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Yes, that's correct.didieravoaka wrote:A wooden rod is cut into two pieces. What is the length of the longer piece?
(1) One of the pieces is 20 inches longer than the other piece.
(2) The length of the shorter piece is 1/3 the length of the longer piece.
I got C for this question. Shorter 10 and longer 30
Let x equal the length of the longer rod. And y the length of the shorter rod.
Then x = y + 20 and y = x/3.
And by substitution, x = x/3 + 20. Solving for x, x = 30. Plugging this back into either equation, we find y = 10.
Fairly easy system of equations.
800 or bust!
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OptimusPrep
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Given: Rod is cut into 2 piecesdidieravoaka wrote:A wooden rod is cut into two pieces. What is the length of the longer piece?
(1) One of the pieces is 20 inches longer than the other piece.
(2) The length of the shorter piece is 1/3 the length of the longer piece.
I got C for this question. Shorter 10 and longer 30
Required: Length of the longer piece
Statement 1: One of the pieces is 20 inches longer than the other piece
This statement does not tell us anything about the lengths of the pieces, just a relation between them
Insufficient
Statement 2:The length of the shorter piece is 1/3 the length of the longer piece.
In this case again, there is no information about the lengths of the pieces
Insufficient
Combining both statements:
From Statement 1 - Assume the pieces to be l and l + 20 in length.(We can solve this just by using one variable)
From statement 2 - l + 20 = 3l
Hence we have l = 10
Therefore the length of the longer piece = 20
Sufficient
Option C
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didieravoaka
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Hi didieravoaka,
Yes, you absolutely DID answer it correctly. What is the source of this question? Didn't it include the correct answer (and an explanation?)?
GMAT assassins aren't born, they're made,
Rich
Yes, you absolutely DID answer it correctly. What is the source of this question? Didn't it include the correct answer (and an explanation?)?
GMAT assassins aren't born, they're made,
Rich
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Matt@VeritasPrep
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There aren't answers for these questions? What a strange source!didieravoaka wrote:Yes Rich, I was wondering whether I got it right.
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didieravoaka
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Hi guys,
Sorry, I don't remember where I got this question. It might be VeritasPrep or GmatPrep.
Sorry, I don't remember where I got this question. It might be VeritasPrep or GmatPrep.
