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.
05 Oct 2020, 03:25
Kudos
Bookmarks
N
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
(N/A)
Question Stats:
0% (00:00) correct
0%
(00:00)
wrong
based on 0
sessions
History
Date
Time
Result
Not Attempted Yet
Hey Everyone - I have been lurking around the forum and wanted to share my notes might be of some help
Part 1: Tacking those questions which ask you to find the consecutive integers in a set / consecutive multiples in a set
Consecutive Integers
No. of consecutive integers between x and y, including only ONE of them numbers = y - x
No. of consecutive integers between x and y, inclusive of BOTH the numbers = y - x + 1
No. of consecutive integers between x and y, EXCLUDING BOTH the numbers = y - x -1
Example:
1. Number of consecutive integers between 100 and 900, including only ONE of the numbers = 900 - 100 = 800
2. Number of consecutive integers between 100 and 900, inclusive of BOTH the numbers = 900 - 100 + 1 = 801
3. Number of consecutive integers between 100 and 900, Excluding both the numbers = 900 - 100 -1 = 799
Consecutive Multiples
Steps to find the consecutive multiples of any given number between x and y
Step 1: Find the highest divisible number between x and y
Step 2: Find the lowest divisible number between x and y
Use the below formula
\(\frac{(Highest Divisible number - Lowest divisible number) }{ Given number} + 1 \)
Example
Find the consecutive multiples between 6 and 77 that are divisible by 5
Step 1: Highest number divisible by 5 within the range is 75
Step 2: Lowest number divisible by 5 within the range is 10
Applying the formula we get \(\frac{(75 - 10)}{5} + 1\)
Simplifying we get it as 14
Part 2: Finding the Sum / Average of the multiples
We know that
Average = \(\frac{Sum of the terms}{#s terms}\)
Finding sum of evenly spaced sets
Evenly space sets are ones in which the gap between each successive element in the set is equal or in other terms they are in an AP
For EVENLY SPACED sets Average can be defined as
\(Average = \frac{(Last term + First term)}{2}\)
Now using the #s of terms formula from part 1 and the above formula we can compute the sum of the terms
Example:
Find the sum of all multiples of 3 between 1 and 100?
Part 1: Find the #s multiples = \(\frac{(99-3)}{3} + 1 \) = 33
Note that the set would be 3,6,9....99 (This is evenly spaced with a common difference of 3)
Part 2: Find the average of the set = \(\frac{(99+3)}{2}\) = 51
Now the sum of all terms in the set = Average * #s of terms = 51*33 = 1683
Hope it helps
Part 1: Tacking those questions which ask you to find the consecutive integers in a set / consecutive multiples in a set
Consecutive Integers
No. of consecutive integers between x and y, including only ONE of them numbers = y - x
No. of consecutive integers between x and y, inclusive of BOTH the numbers = y - x + 1
No. of consecutive integers between x and y, EXCLUDING BOTH the numbers = y - x -1
Example:
1. Number of consecutive integers between 100 and 900, including only ONE of the numbers = 900 - 100 = 800
2. Number of consecutive integers between 100 and 900, inclusive of BOTH the numbers = 900 - 100 + 1 = 801
3. Number of consecutive integers between 100 and 900, Excluding both the numbers = 900 - 100 -1 = 799
Consecutive Multiples
Steps to find the consecutive multiples of any given number between x and y
Step 1: Find the highest divisible number between x and y
Step 2: Find the lowest divisible number between x and y
Use the below formula
\(\frac{(Highest Divisible number - Lowest divisible number) }{ Given number} + 1 \)
Example
Find the consecutive multiples between 6 and 77 that are divisible by 5
Step 1: Highest number divisible by 5 within the range is 75
Step 2: Lowest number divisible by 5 within the range is 10
Applying the formula we get \(\frac{(75 - 10)}{5} + 1\)
Simplifying we get it as 14
Part 2: Finding the Sum / Average of the multiples
We know that
Average = \(\frac{Sum of the terms}{#s terms}\)
Finding sum of evenly spaced sets
Evenly space sets are ones in which the gap between each successive element in the set is equal or in other terms they are in an AP
For EVENLY SPACED sets Average can be defined as
\(Average = \frac{(Last term + First term)}{2}\)
Now using the #s of terms formula from part 1 and the above formula we can compute the sum of the terms
Example:
Find the sum of all multiples of 3 between 1 and 100?
Part 1: Find the #s multiples = \(\frac{(99-3)}{3} + 1 \) = 33
Note that the set would be 3,6,9....99 (This is evenly spaced with a common difference of 3)
Part 2: Find the average of the set = \(\frac{(99+3)}{2}\) = 51
Now the sum of all terms in the set = Average * #s of terms = 51*33 = 1683
Hope it helps
01 Jul 2025, 14:34
Kudos
Bookmarks
Automated notice from GMAT Club BumpBot:
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
