Last visit was: 23 Apr 2026, 05:00 It is currently 23 Apr 2026, 05:00
Home
Messages
Tests
Schools
Events
Close
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

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 GMAT 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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
MHIKER
User avatar
Joined: 14 Jul 2010
Last visit: 24 May 2021
Posts: 939
Own Kudos:
5,811
 [3]
Given Kudos: 690
Status:No dream is too large, no dreamer is too small
Concentration: Accounting
Posts: 939
Kudos: 5,811
 [3]
How many multiples of 10 are there between 1000 and 2000, inclusive? 12 Aug 2010, 09:27
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
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:

88% (00:38) correct 13% (00:35) wrong based on 44 sessions

History

Date
Time
Result
Not Attempted Yet
How many multiples of 10 are there between 1000 and 2000, inclusive?

OA:
Show Spoiler
101
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 23 Apr 2026
Posts: 109,776
Own Kudos:
810,755
 [3]
Given Kudos: 105,853
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,776
Kudos: 810,755
 [3]
How many multiples of 10 are there between 1000 and 2000, inclusive? 12 Aug 2010, 09:44
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
Baten80
How many multiples of 10 are there between 1000 and 2000, inclusive?

Let me to know the calculation process.
Ans.101
Show more

Hi, and welcome to Gmat Club! Below is a solution for your problem:

\(# \ of \ multiples \ of \ x \ in \ the \ range = \frac{Last \ multiple \ of \ x \ in \ the \ range \ - \ First \ multiple \ of \ x \ in \ the \ range}{x}+1\).

For our original question we would have: \(\frac{2,000-1,000}{10}+1=101\).

Check this: totally-basic-94862.html?hilit=last%20first%20range%20multiple

Hope it helps.
User avatar
ezhilkumarank
User avatar
Joined: 24 Jun 2010
Last visit: 08 May 2014
Posts: 270
Own Kudos:
769
 [1]
Given Kudos: 50
Status:Time to step up the tempo
Location: Milky way
Concentration: International Business, Marketing
Schools:ISB, Tepper - CMU, Chicago Booth, LSB
Posts: 270
Kudos: 769
 [1]
How many multiples of 10 are there between 1000 and 2000, inclusive? 12 Aug 2010, 09:47
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
My attempt:

1000 - 1100 -- 11
1110 - 1200 -- 10
1210 - 1300 -- 10

1X10 - 1(X+1)00 -- 10

X - 3, 4, 5, 6 ,7 ,8, 9.

Sum them up - 101.
User avatar
ingoditrust
User avatar
Joined: 14 Mar 2010
Last visit: 11 Apr 2012
Posts: 255
Own Kudos:
68
Given Kudos: 3
Status:Fighting on
Concentration: Product management/entrepreneurship
Schools:UCLA (R1 interview-WL), UNC(R2--interview-ding) Oxford(R2-Admit), Kelley (R2- Admit $$), McCombs(R2)
GPA: 4.0
WE 1: SE - 1
WE 2: Engineer - 3
Posts: 255
Kudos: 68
How many multiples of 10 are there between 1000 and 2000, inclusive? 12 Aug 2010, 11:27
Kudos
Add Kudos
Bookmarks
Bookmark this Post
In general the formula for any series where "d" is the increment or difference between two terms to find the nth term =
An= A1+ (n-1)d
Now we know An =2000
A1=1000
d=10
2000=1000+(n-1)10
=101

OR
Use this
( last -first )/ increment + 1

Posted from my mobile device
User avatar
resh
User avatar
GRE Forum Moderator
Joined: 21 Jun 2010
Last visit: 01 May 2012
Posts: 193
Own Kudos:
192
Given Kudos: 2
Affiliations: PMP certified, IT professional
Location: USA
Concentration: MS -IS
Schools:CMU, Kelley
GPA: 3.7
Posts: 193
Kudos: 192
How many multiples of 10 are there between 1000 and 2000, inclusive? 14 Aug 2010, 09:44
Kudos
Add Kudos
Bookmarks
Bookmark this Post
As already discussed, the method is [(Last-First)/Increment ]+1

If you are refering to mgmat by any chance, this is discussed in Chap4 of Number properties
User avatar
SinhaS
User avatar
Joined: 30 Jun 2017
Last visit: 21 Jan 2018
Posts: 11
Own Kudos:
10
Given Kudos: 88
Location: India
Concentration: Technology, General Management
WE:Consulting (Computer Software)
Posts: 11
Kudos: 10
How many multiples of 10 are there between 1000 and 2000, inclusive? 06 Sep 2017, 22:57
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
Baten80
How many multiples of 10 are there between 1000 and 2000, inclusive?

Let me to know the calculation process.
Ans.101

Hi, and welcome to Gmat Club! Below is a solution for your problem:

\(# \ of \ multiples \ of \ x \ in \ the \ range = \frac{Last \ multiple \ of \ x \ in \ the \ range \ - \ First \ multiple \ of \ x \ in \ the \ range}{x}+1\).

For our original question we would have: \(\frac{2,000-1,000}{10}+1=101\).

Check this: https://gmatclub.com/forum/totally-basic ... 20multiple

Hope it helps.
Show more

Hi Bunuel, Thanks for the explanation. However, if the question would have been that how many multiples of 5 are there between -7 and 37, inclusive? Will we consider the last number to be 35 and the first number to be -5?
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 23 Apr 2026
Posts: 109,776
Own Kudos:
810,755
 [1]
Given Kudos: 105,853
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,776
Kudos: 810,755
 [1]
How many multiples of 10 are there between 1000 and 2000, inclusive? 06 Sep 2017, 23:07
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
SinhaS
Bunuel
Baten80
How many multiples of 10 are there between 1000 and 2000, inclusive?

Let me to know the calculation process.
Ans.101

Hi, and welcome to Gmat Club! Below is a solution for your problem:

\(# \ of \ multiples \ of \ x \ in \ the \ range = \frac{Last \ multiple \ of \ x \ in \ the \ range \ - \ First \ multiple \ of \ x \ in \ the \ range}{x}+1\).

For our original question we would have: \(\frac{2,000-1,000}{10}+1=101\).

Check this: https://gmatclub.com/forum/totally-basic ... 20multiple

Hope it helps.

Hi Bunuel, Thanks for the explanation. However, if the question would have been that how many multiples of 5 are there between -7 and 37, inclusive? Will we consider the last number to be 35 and the first number to be -5?
Show more

How many multiples of 5 are there between -7 and 37, inclusive?

The first multiple is -5 and the last multiple is 35, so the answer is (35 - (-5))/5 + 1 = 9:
-5, 0, 5, 10, 15, 20, 25, 30 and 35.
User avatar
SinhaS
User avatar
Joined: 30 Jun 2017
Last visit: 21 Jan 2018
Posts: 11
Own Kudos:
10
Given Kudos: 88
Location: India
Concentration: Technology, General Management
WE:Consulting (Computer Software)
Posts: 11
Kudos: 10
How many multiples of 10 are there between 1000 and 2000, inclusive? 06 Sep 2017, 23:11
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
SinhaS
How many multiples of 10 are there between 1000 and 2000, inclusive?

Let me to know the calculation process.
Ans.101

Hi, and welcome to Gmat Club! Below is a solution for your problem:

\(# \ of \ multiples \ of \ x \ in \ the \ range = \frac{Last \ multiple \ of \ x \ in \ the \ range \ - \ First \ multiple \ of \ x \ in \ the \ range}{x}+1\).

For our original question we would have: \(\frac{2,000-1,000}{10}+1=101\).

Check this: https://gmatclub.com/forum/totally-basic ... 20multiple

Hope it helps.

Hi Bunuel, Thanks for the explanation. However, if the question would have been that how many multiples of 5 are there between -7 and 37, inclusive? Will we consider the last number to be 35 and the first number to be -5?
Show more

How many multiples of 5 are there between -7 and 37, inclusive?

The first multiple is -5 and the last multiple is 35, so the answer is (35 - (-5))/5 + 1 = 9:
-5, 0, 5, 10, 15, 20, 25, 30 and 35.

Thanks. I got it right. Now it's clear.
User avatar
MathRevolution
User avatar
Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Last visit: 27 Sep 2022
Posts: 10,063
Own Kudos:
20,000
Given Kudos: 4
GMAT 1: 760 Q51 V42
GPA: 3.82
Expert
Expert reply
GMAT 1: 760 Q51 V42
Posts: 10,063
Kudos: 20,000
How many multiples of 10 are there between 1000 and 2000, inclusive? 21 Jul 2021, 06:52
Kudos
Add Kudos
Bookmarks
Bookmark this Post
\(\frac{2000 - 1000 }{ 10} + 1 = 101\)

Answer 101
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,957
Own Kudos:
1,117
Posts: 38,957
Kudos: 1,117
How many multiples of 10 are there between 1000 and 2000, inclusive? 03 Dec 2022, 08:24
Kudos
Add Kudos
Bookmarks
Bookmark this Post
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.
Moderators:
Bunuel
Math Expert
109776 posts
Krunaal
Tuck School Moderator
853 posts