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
The OA is C
Source: GMAT Prep
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A wooden rod is cut into two pieces. What is the length of
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Say the lengths of the two pieces are x and y inches such that x > y. We have to get the value of x.swerve 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
The OA is C
Source: GMAT Prep
Let's take each statement one by one.
1) One of the pieces is 20 inches longer than the other piece.
x = y + 20. Insufficient.
2) The length of the shorter piece is 1/3 the length of the longer piece.
y = x/3. Insufficient.
(1) and (2) together
From x = y + 20 and y = x/3, we have x = x/3 + 20 => 2x/3 = 20 => x = 30 inches. Sufficient.
The correct answer: C
Hope this helps!
-Jay
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