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.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
43% (01:36) correct
57%
(01:19)
wrong
based on 97
sessions
History
Date
Time
Result
Not Attempted Yet
If X is a 3-digit number, is it odd?
(1) X is a perfect square.
(2) X is a palindrome.
(1) X is a perfect square.
(2) X is a palindrome.
aa008
OA: E
1). X is a perfect square.
X can be \(121,144,169...\) and so on.
Unit digit of X can be even or odd
Statement 1 alone is not sufficient.
2). X is a palindrome.
X can be \(121,131,141,.....212,222\) and so on.
Unit digit of X can be even or odd
Statement 2 alone is not sufficient.
Combining \((1)\) and \((2)\),X should be a perfect square and a palindrome.
X can be \(121(11^2), 484(22^2)\) as there is no unique value of X and unit digit of X can be even or odd, Combining (1) and (2) will also be insufficient.
23 Sep 2018, 01:35
Kudos
Bookmarks
Solution
Given:
- • X is a 3-digit number
To find:
- • Whether X is odd or not.
Analysing Statement 1
As per the information given in statement 1, X is a perfect square.
- • Starting from 100 to 961, we have many even and odd perfect squares
Therefore, statement 1 is not sufficient
Analysing Statement 2
As per the information given in statement 2, X is palindrome.
- • In 3-digits, we have many even as well as odd numbers which are palindromes.
Therefore, statement 2 is not sufficient.
Combining Both Statements
We know, X is a 3-digit perfect square, which is also a palindrome.
Possible values of X can be
- • \(11^2 = 121\)
• \(22^2 = 484\)
• \(26^2 = 676\)
As we can see, X can be both even or odd.
Hence, the correct answer is option E.
