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05 Mar 2019, 05:23
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C
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Difficulty:
5%
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Question Stats:
100% (00:34) correct
0%
(00:00)
wrong
based on 66
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What is the area of rectangle ABCD ?
(1) Side B is 7 units long.
(2) The perimeter of rectangle ABCD is 20 units.
(1) Side B is 7 units long.
(2) The perimeter of rectangle ABCD is 20 units.
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
05 Mar 2019, 06:22
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Option A: one side is given but not the other. so not sufficient.
Option B: perimeter is given, so l+b+10. but no info on l or b. not sufficient.
Taking both together, l=7 and l+b=10, means l=7 and b=3, so area can be found.
Ans: C
Option B: perimeter is given, so l+b+10. but no info on l or b. not sufficient.
Taking both together, l=7 and l+b=10, means l=7 and b=3, so area can be found.
Ans: C
Updated on: 05 Mar 2019, 16:06
Originally posted by shinichikudo on 05 Mar 2019, 07:00.
Last edited by shinichikudo on 05 Mar 2019, 16:06, edited 1 time in total.
Last edited by shinichikudo on 05 Mar 2019, 16:06, edited 1 time in total.
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Thank you Bunuel for the question 
Area of a rectangle = Wide x Length
(S1) Side B is 7 units long. -> clearly insuf, we only know 1 side -> B/C/E
(S2) Perimeter = 20 <=> (W + L) x2 = 20 ->insuf. -> C/E
(1)+(2) We know the W and the L -> Area of ABCD -> suf -> C.
Area of a rectangle = Wide x Length
(S1) Side B is 7 units long. -> clearly insuf, we only know 1 side -> B/C/E
(S2) Perimeter = 20 <=> (W + L) x2 = 20 ->insuf. -> C/E
(1)+(2) We know the W and the L -> Area of ABCD -> suf -> C.
