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23 Jan 2021, 09:45
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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:
77% (00:31) correct
23%
(00:32)
wrong
based on 66
sessions
History
Date
Time
Result
Not Attempted Yet
23 Jan 2021, 12:09
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Bunuel
Target question: Is mn < 100?
Statement 1: m < 2
No information about the value of n means statement 1 is NOT SUFFICIENT
Statement 2: n < 5
No information about the value of m means statement 2 is NOT SUFFICIENT
Statements 1 and 2 combined
There are several values of m and n that satisfy BOTH statements. Here are two:
Case a: m = 1 and n = 4, in which case the answer to the target question is YES, mn is less than 100
Case b: m = -10 and n = -30 in which case mn = (-10)(-30) = 300. So, the answer to the target question is NO, mn is not less than 100
Since we can’t answer the target question with certainty, the combined statements are NOT SUFFICIENT
Answer: E
Cheers,
Brent
23 Jan 2021, 12:53
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Is mn < 100?
Stat1: m < 2; we don't know about n, so not sufficient.
Stat2: n < 5; we don't know about m, so not sufficient.
Combining both, if m=-500 and n=-1 then mn > 100 and if m=-500 and n=1 , then mn < 100, not sufficient.
So, I think E.
Stat1: m < 2; we don't know about n, so not sufficient.
Stat2: n < 5; we don't know about m, so not sufficient.
Combining both, if m=-500 and n=-1 then mn > 100 and if m=-500 and n=1 , then mn < 100, not sufficient.
So, I think E.
