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31 Jan 2016, 07:23
Kudos
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
86% (00:50) correct
14%
(00:54)
wrong
based on 93
sessions
History
Date
Time
Result
Not Attempted Yet
What is the area of a rectangular field?
(1) The diagonal is twice the width.
(2) The length is 173 feet.
(1) The diagonal is twice the width.
(2) The length is 173 feet.
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
01 Feb 2016, 12:44
Kudos
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Area of rectangular field = length * width
(1) The diagonal is twice the width.
Let diagonal = 2d
and width = d
Not sufficient
(2) The length is 173 feet
Not sufficient as we have no information about width
Combining 1 and 2 , we get
(2d)^2 = d^2 + 173^2
=>3*d^2 = 173^2
=>d = 173/(3^1/2)
Sufficient as we know both length and width
Answer C
(1) The diagonal is twice the width.
Let diagonal = 2d
and width = d
Not sufficient
(2) The length is 173 feet
Not sufficient as we have no information about width
Combining 1 and 2 , we get
(2d)^2 = d^2 + 173^2
=>3*d^2 = 173^2
=>d = 173/(3^1/2)
Sufficient as we know both length and width
Answer C
15 Mar 2016, 23:12
Kudos
Bookmarks
1. D=2W=2x =
=> L = sqrt (4x^2-x^2)
=> L= x sqrt (3)
Insufficient
2. Length = 173 feet . Insufficient
Combining 1 and 2 we can get the area. C.
=> L = sqrt (4x^2-x^2)
=> L= x sqrt (3)
Insufficient
2. Length = 173 feet . Insufficient
Combining 1 and 2 we can get the area. C.
Attachments
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