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
we will pick new questions that match your level based on your Timer History
Track Your Progress
every week, we’ll send you an estimated GRE score based on your performance
Practice Pays
we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Your score will improve and your results will be more realistic
Is there something wrong with our timer?Let us know!
The GRE LiveTeach Program is meticulously designed to bring GRE concepts to life, accelerate your study timeline, and optimize your performance on test questions in a matter of weeks. Hurry up and grab a seat!
GRE Prep Club is the ultimate destination for students who aspire to achieve excellence in their GRE test. We offer comprehensive resources and tools that empower students to reach their highest potential and unlock their brightest future.
The Target Test Prep course represents a quantum leap forward in GRE preparation, a radical reinterpretation of the way that students should study. In fact, more and more Target Test Prep students are scoring 329 and above on the GRE.
Math Review Question: 8 Page: 297 Difficulty: medium
Take the task of "building" 3-digit integers and break it into stages.
We’ll begin with the most restrictive stage.
Stage 1: Select a units digit Since the integer must be odd, the units digit can be 1, 3, 7, or 9 (no 5's allowed) So, we can complete stage 1 in 4 ways
Stage 2: Select a hundreds digit This digit can be 1, 2, 3, 4, 6, 7, 8 or 9 So we can complete stage 2 in 8 ways
Stage 3: Select a tens digit This digit can be 0, 1, 2, 3, 4, 6, 7, 8 or 9 So we can complete stage 3 in 9 ways
By the Fundamental Counting Principle (FCP), we can complete all 3 stages (and thus create a 3-digit integer) in (4)(8)(9) ways (= 288 ways)
Answer: 288
Note: the FCP can be used to solve the MAJORITY of counting questions on the GRE. So, be sure to learn
Re: How many 3-digit positive integers are odd and do not contai
[#permalink]
25 Sep 2022, 11:26
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.