If n is an integer, is 10n ≤ 0.001 ?
(1) n ≤ -2
(2) n > -5
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
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If n is an integer, is 10n ≤ 0.001 ?
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gmatmachoman
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Prompt after rephrasing asks us if LHS is less than/ equal to a Positive number:?
ST 1 :
n is always a negative number. so will LHS. It is clear than LHS is < RHS Sufficient
St 2:
n>-5. there is a possibilty that n can be positive /negative.
Insufficient
Pick A
ST 1 :
n is always a negative number. so will LHS. It is clear than LHS is < RHS Sufficient
St 2:
n>-5. there is a possibilty that n can be positive /negative.
Insufficient
Pick A
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selango
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Is it 10^n or 10n?
10^n<=1/1000
stmt1,
n<=-2
n=-2 10^n>=1/1000
n=-4 10^n<=1/1000
Insuff
stmt2,
n>-5
n=1 10^n>=1/1000
n=-4 10^n<=1/1000
Insuff
Combining 1 and 2,
-5>n<=-2
n=-2,-3,-4.Same scenario exists here.
n=-2 10^n>=1/1000
n=-4 10^n<=1/1000
Insuff
Pick E
10^n<=1/1000
stmt1,
n<=-2
n=-2 10^n>=1/1000
n=-4 10^n<=1/1000
Insuff
stmt2,
n>-5
n=1 10^n>=1/1000
n=-4 10^n<=1/1000
Insuff
Combining 1 and 2,
-5>n<=-2
n=-2,-3,-4.Same scenario exists here.
n=-2 10^n>=1/1000
n=-4 10^n<=1/1000
Insuff
Pick E
--Anand--
