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14 Jun 2012, 03:13
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E
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:
72% (00:48) correct
28%
(00:45)
wrong
based on 2514
sessions
History
Date
Time
Result
Not Attempted Yet
What is the perimeter of isosceles triangle MNP?
(1) MN = 16
(2) NP = 20
(1) MN = 16
(2) NP = 20
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14 Jun 2012, 03:14
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SOLUTION
What is the perimeter of isosceles triangle MNP?
(1) MN = 16. We only know the length of one side. Not sufficient.
(2) NP = 20. We only know the length of one side. Not sufficient.
(1)+(2) If MN=MP=16 and NP=20 then the perimeter would be 16+16+20=52 but if MN=16 and NP=MP=20 then the perimeter would be 16+20+20=56. Not sufficient.
Answer: E.
What is the perimeter of isosceles triangle MNP?
(1) MN = 16. We only know the length of one side. Not sufficient.
(2) NP = 20. We only know the length of one side. Not sufficient.
(1)+(2) If MN=MP=16 and NP=20 then the perimeter would be 16+16+20=52 but if MN=16 and NP=MP=20 then the perimeter would be 16+20+20=56. Not sufficient.
Answer: E.
Updated on: 14 Jun 2012, 04:40
Originally posted by cyberjadugar on 14 Jun 2012, 04:16.
Last edited by cyberjadugar on 14 Jun 2012, 04:40, edited 1 time in total.
Last edited by cyberjadugar on 14 Jun 2012, 04:40, edited 1 time in total.
Kudos
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Hi,
Difficulty level: close to 600. ('cause at first glance, I said, answer is (C). Then, when I actually solved, I got the right answer.)
Perimeter of isosceles triangle MNP?
Using (1),
MN = 16, no idea about NP & MP. Insufficient.
Using (2)
NP = 20, no idea about MN & MP. Insufficient.
Combining both the statements,
MN = 16 & NP = 20
for MNP to be isosceles, the third side MP can be 16 or 20. Insufficient.
Thus, Answer is (E).
Regards,
Difficulty level: close to 600. ('cause at first glance, I said, answer is (C). Then, when I actually solved, I got the right answer.)
Perimeter of isosceles triangle MNP?
Using (1),
MN = 16, no idea about NP & MP. Insufficient.
Using (2)
NP = 20, no idea about MN & MP. Insufficient.
Combining both the statements,
MN = 16 & NP = 20
for MNP to be isosceles, the third side MP can be 16 or 20. Insufficient.
Thus, Answer is (E).
Regards,
