Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Dec 1310:00 AM EST
-12:00 PM EST
Have you ever wondered how to score a PERFECT 805 on the GMAT? Meet Julia, a banking professional who used the Target Test Prep course to achieve this incredible feat. Julia's story is nothing short of an inspiration.
Dec 1410:00 AM EST
-12:00 PM EST
Think a 100% GMAT Verbal score is out of your reach? Target Test Prep will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Dec 1411:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.- Dec 15
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Dec 1608:00 AM PST
-11:59 PM PST
GMAT Club 12 Days of Christmas is a 4th Annual GMAT Club Winter Competition based on solving questions. This is the Winter GMAT competition on GMAT Club with an amazing opportunity to win over $40,000 worth of prizes!
19 Mar 2012, 04:59
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
48% (01:14) correct
52%
(00:59)
wrong
based on 116
sessions
History
Date
Time
Result
Not Attempted Yet
Is q^2 an odd integer?
(1) q is an odd integer.
(2) q^4 is an odd integer.
How come the answer will be A? For me it should be straight D or I am reading something wrong.
(1) q is an odd integer.
(2) q^4 is an odd integer.
How come the answer will be A? For me it should be straight D or I am reading something wrong.
19 Mar 2012, 05:09
Kudos
Bookmarks
Is q^2 an odd integer?
Notice that we are not told that q is an integer.
(1) q is an odd integer --> q^2 is odd. Sufficient.
(2) q^4 is an odd integer --> if \(q=odd\) then the answer would be YES, but if \(q=\sqrt[4]{3}\) then the answer would be NO, since \(q^2=\sqrt{3}\) is not an integer at all. Not sufficient.
Answer: A.
Hope it's clear.
Notice that we are not told that q is an integer.
(1) q is an odd integer --> q^2 is odd. Sufficient.
(2) q^4 is an odd integer --> if \(q=odd\) then the answer would be YES, but if \(q=\sqrt[4]{3}\) then the answer would be NO, since \(q^2=\sqrt{3}\) is not an integer at all. Not sufficient.
Answer: A.
Hope it's clear.
19 Mar 2012, 05:18
Kudos
Bookmarks
Similar questions to practice:
what-is-the-value-of-x-1-x3-is-a-2-digit-positive-odd-107195.html
is-x-2-y-4-an-integer-divisible-by-9-1-x-is-an-integer-100947.html
is-x-3-an-integer-1-7x-3-positive-integer-2-14x-94471.html
is-s-an-odd-integer-127400.html?hilit=irrational
is-y-an-integer-1-y-3-is-an-integer-2-3y-is-an-integer-127344.html?hilit=irrational
if-y-is-a-positive-integer-is-root-y-an-integer-s1-root-108287.html?hilit=irrational
if-8-0-5y-3-0-75x-12-n-then-what-is-the-value-of-x-1-n-106606.html?hilit=irrational
if-x-is-a-positive-integer-is-sqrt-x-an-integer-88994.html?hilit=irrational
what-is-the-value-of-x-1-x3-is-a-2-digit-positive-odd-107195.html?hilit=irrational
if-x-is-a-positive-integer-is-sqrt-x-an-integer-88994.html
value-of-x-107195.html
number-prop-ds-106886.html
number-system-106606.html
odd-vs-even-trick-question-106562.html
quant-review-2nd-edition-ds-104421.html
algebra-ds-101464.html
i-cant-understand-how-the-oa-is-101475.html
algebra-ds-101464.html
i-cant-understand-how-the-oa-is-101475.html
quant-review-2nd-edition-ds-104421.html
is-og-quant-question-answer-wrong-90619.html
q-31-og-12-ds-101918.html
value-of-x-107195.html
airthmetic-ds-108287.html
Hope it helps.
what-is-the-value-of-x-1-x3-is-a-2-digit-positive-odd-107195.html
is-x-2-y-4-an-integer-divisible-by-9-1-x-is-an-integer-100947.html
is-x-3-an-integer-1-7x-3-positive-integer-2-14x-94471.html
is-s-an-odd-integer-127400.html?hilit=irrational
is-y-an-integer-1-y-3-is-an-integer-2-3y-is-an-integer-127344.html?hilit=irrational
if-y-is-a-positive-integer-is-root-y-an-integer-s1-root-108287.html?hilit=irrational
if-8-0-5y-3-0-75x-12-n-then-what-is-the-value-of-x-1-n-106606.html?hilit=irrational
if-x-is-a-positive-integer-is-sqrt-x-an-integer-88994.html?hilit=irrational
what-is-the-value-of-x-1-x3-is-a-2-digit-positive-odd-107195.html?hilit=irrational
if-x-is-a-positive-integer-is-sqrt-x-an-integer-88994.html
value-of-x-107195.html
number-prop-ds-106886.html
number-system-106606.html
odd-vs-even-trick-question-106562.html
quant-review-2nd-edition-ds-104421.html
algebra-ds-101464.html
i-cant-understand-how-the-oa-is-101475.html
algebra-ds-101464.html
i-cant-understand-how-the-oa-is-101475.html
quant-review-2nd-edition-ds-104421.html
is-og-quant-question-answer-wrong-90619.html
q-31-og-12-ds-101918.html
value-of-x-107195.html
airthmetic-ds-108287.html
Hope it helps.
