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05 Mar 2019, 05:23
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C
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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.
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.
