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06 Dec 2016, 07:26
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:
25%
(medium)
Question Stats:
71% (01:09) correct
29%
(01:30)
wrong
based on 111
sessions
History
Date
Time
Result
Not Attempted Yet
The digit m is greater than 1, what is m?
(1) The units digit of m is the same as the units digit of m^2
(2) m has 2 factors
(1) The units digit of m is the same as the units digit of m^2
(2) m has 2 factors
07 Dec 2016, 09:10
Kudos
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Bunuel
from stem m is integer such that 1<m<=9
from 1
m could be 5 or 6 ... insuff
from 2
m has 2 factors , only primes does thus m could be 2,3,5,7... insuff
from both
m = 5
C
07 Dec 2016, 11:48
Kudos
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Bunuel
FROM STATEMENT - I ( INSUFFICIENT )
\(m\) & \(m^2\) can have same digits only when m (greater than 1) = 5 & 6
So, there are multiple possible values..
FROM STATEMENT - II ( INSUFFICIENT )
This statement alone is insufficient to find the value of m
FROM STATEMENT I & II ( SUFFICIENT )
The value of m must be 5 as 6 has three factors 1, 2 & 3
Hence, BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked , correct answer must be (C)
