BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

How many integers between 234700

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 53
Joined: Wed Dec 10, 2008 5:47 am
Location: Rorkee
by CrackGMAC » Thu Aug 27, 2009 7:55 am
How many integers between 234700 and 458600 have tens digit 1 and units digit 3?
A 10300
B.10030
C 1353
D 1352
E 1339

I am not sure whether the no.s are correct. I just want to know the way to solve this problemIf you have something simillar pls share.
Beat The GMAT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 159
Joined: Thu Aug 27, 2009 10:30 am
Thanked: 19 times

by bharathh » Thu Aug 27, 2009 12:56 pm
None of the answer choices look correct.

There will be one integer per hundred integers with units digit 3 and tens digit 1.

There are 223700 integers between the two big numbers. So there should be 2237 integers that meet the condition.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 869
Joined: Wed Aug 26, 2009 3:49 pmFollowed by: 3 members
Location: California
Thanked: 13 times

by heshamelaziry » Thu Aug 27, 2009 6:11 pm
bharathh wrote:None of the answer choices look correct.

There will be one integer per hundred integers with units digit 3 and tens digit 1.

There are 223700 integers between the two big numbers. So there should be 2237 integers that meet the condition.

Could you please explain how you got 2237 from 223700 ???
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 231
Joined: Thu Apr 12, 2007 2:45 amFollowed by: 1 member
Thanked: 5 times

by winnerhere » Fri Aug 28, 2009 12:18 am
For me the answer sums upto 1504
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 53
Joined: Wed Dec 10, 2008 5:47 am
Location: Rorkee

by CrackGMAC » Fri Aug 28, 2009 8:00 am
Can you please explain winnerhere?
Beat The GMAT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 134
Joined: Sun Feb 15, 2009 7:44 pm
Thanked: 14 times

by m&m » Fri Aug 28, 2009 8:45 am
between 234700 and 458600

you will have
234713
234813
234913
...
458513
458613 X this number is greater so stop at previous


So for every hundred you will have a digit of 13 at the end. So 4586 - 2347 will give you the number of HUNDREDS between them = 2239

now you need to subtract 1 because 458613 is counted in the 4586 hundred

so answer is 2239-1=2238

Hope this helps
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 869
Joined: Wed Aug 26, 2009 3:49 pmFollowed by: 3 members
Location: California
Thanked: 13 times

by heshamelaziry » Fri Aug 28, 2009 10:19 am
m&m wrote:between 234700 and 458600

you will have
234713
234813
234913
...
458513
458613 X this number is greater so stop at previous


So for every hundred you will have a digit of 13 at the end. So 4586 - 2347 will give you the number of HUNDREDS between them = 2239

now you need to subtract 1 because 458613 is counted in the 4586 hundred

so answer is 2239-1=2238

Hope this helps
Thanks for the explanation. when it says ten digit 1 and unit digit 3 I say 31, is this correct ? if yes, what is the number that meets this condition between 100 and 200 per say ?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 231
Joined: Thu Apr 12, 2007 2:45 amFollowed by: 1 member
Thanked: 5 times

by winnerhere » Fri Aug 28, 2009 10:49 am
CrackGMAC wrote:Can you please explain winnerhere?
oops.I used a wrong logic here.The other guys have given the perfect answer :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 134
Joined: Sun Feb 15, 2009 7:44 pm
Thanked: 14 times

by m&m » Fri Aug 28, 2009 12:44 pm
heshamelaziry wrote:
Thanks for the explanation. when it says ten digit 1 and unit digit 3 I say 31, is this correct ? if yes, what is the number that meets this condition between 100 and 200 per say ?
the order goes

hundreds, tens, units = 100s, 10s, 1s
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Newbie | Next Rank: 10 Posts
Posts: 5
Joined: Mon Aug 24, 2009 1:29 pm
Thanked: 2 times

by bdoug » Fri Aug 28, 2009 1:01 pm
I'm going to agree with m&m with one exception. I do not believe you should subtract 1 from your answer and here's why:

Take two numbers much closer, lets say 458300 and 458600, now subtract the first from the second to get 300 and divide that by 100 to get the number of hundreds = 3.

We can easily see that this is correct without subtracting 1....

458313,458413, and 458513
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 869
Joined: Wed Aug 26, 2009 3:49 pmFollowed by: 3 members
Location: California
Thanked: 13 times

by heshamelaziry » Fri Aug 28, 2009 1:22 pm
bdoug wrote:I'm going to agree with m&m with one exception. I do not believe you should subtract 1 from your answer and here's why:

Take two numbers much closer, lets say 458300 and 458600, now subtract the first from the second to get 300 and divide that by 100 to get the number of hundreds = 3.

We can easily see that this is correct without subtracting 1....

458313,458413, and 458513
You are correct in this case, but consider 9-5=4 , here one digit of the answer is the digit 9 !!!!

AM I RIGHT. Please explain.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 182
Joined: Sun Aug 02, 2009 7:19 pm
Thanked: 18 times
GMAT Score:680

by sanjana » Sat Aug 29, 2009 5:10 pm
heshamelaziry wrote:
m&m wrote:between 234700 and 458600

you will have
234713
234813
234913
...
458513
458613 X this number is greater so stop at previous


So for every hundred you will have a digit of 13 at the end. So 4586 - 2347 will give you the number of HUNDREDS between them = 2239

now you need to subtract 1 because 458613 is counted in the 4586 hundred

so answer is 2239-1=2238

Hope this helps
Thanks for the explanation. when it says ten digit 1 and unit digit 3 I say 31, is this correct ? if yes, what is the number that meets this condition between 100 and 200 per say ?

I have a small question here. When the question just says "between a & b" d we assume exclusive of a & b ?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 869
Joined: Wed Aug 26, 2009 3:49 pmFollowed by: 3 members
Location: California
Thanked: 13 times

by heshamelaziry » Sat Aug 29, 2009 8:38 pm
sanjana wrote:
heshamelaziry wrote:
m&m wrote:between 234700 and 458600

you will have
234713
234813
234913
...
458513
458613 X this number is greater so stop at previous


So for every hundred you will have a digit of 13 at the end. So 4586 - 2347 will give you the number of HUNDREDS between them = 2239

now you need to subtract 1 because 458613 is counted in the 4586 hundred

so answer is 2239-1=2238

Hope this helps
Thanks for the explanation. when it says ten digit 1 and unit digit 3 I say 31, is this correct ? if yes, what is the number that meets this condition between 100 and 200 per say ?

I have a small question here. When the question just says "between a & b" d we assume exclusive of a & b ?
Yes it is excusive
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1