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28 Feb 2016, 09:46
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A
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Difficulty:
15%
(low)
Question Stats:
81% (00:43) correct
19%
(00:37)
wrong
based on 101
sessions
History
Date
Time
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Not Attempted Yet
28 Feb 2016, 19:22
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Bunuel
Hi,
Info:-
z is a prime number..
lets see the statements;-
(1) z^3<25
check for first two prime numbers--
2^3=8, <25 OK
3^3=27 >25 not fine
Only 2 is possible
SUFF
(2) z^2 > 1
all prime numbers fit in..
Insuff
ans A
28 Mar 2016, 06:26
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given info - z is a prime number
according to statement 1, let's consider some prime numbers like 2 and 3.we can see that only 2^3<25
statement 1 sufficent
according to statement 2, square of prime number is greater than 1,so that can be any prime number greater than 2
statement 2 not sufficent
Answer-A
according to statement 1, let's consider some prime numbers like 2 and 3.we can see that only 2^3<25
statement 1 sufficent
according to statement 2, square of prime number is greater than 1,so that can be any prime number greater than 2
statement 2 not sufficent
Answer-A
