Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 23 May 2013, 15:36

# How many integers between 324,700 and 458,600 have tens

Author Message
TAGS:
Intern
Joined: 12 Feb 2006
Posts: 29
Followers: 0

Kudos [?]: 0 [0], given: 0

How many integers between 324,700 and 458,600 have tens [#permalink]  11 Apr 2006, 08:53
How many integers between 324,700 and 458,600 have tens digit 2 and units digit 1?

1,339
1,352
1,353
10,030
10,300

PLEASE EXPLAIN the concept. I'm not sure how to do these type of problems. Thanks.
Senior Manager
Joined: 11 Nov 2005
Posts: 339
Location: London
Followers: 1

Kudos [?]: 4 [0], given: 0

Re: Challenge Question [#permalink]  11 Apr 2006, 09:19
Is the answer A. ? 1339?

If so then I will explain it.

(I assume that the Q ask for both together tens digit 2 and units digit 1)

yach wrote:
How many integers between 324,700 and 458,600 have tens digit 2 and units digit 1?

1,339
1,352
1,353
10,030
10,300

PLEASE EXPLAIN the concept. I'm not sure how to do these type of problems. Thanks.
Intern
Joined: 12 Feb 2006
Posts: 29
Followers: 0

Kudos [?]: 0 [0], given: 0

Re: Challenge Question [#permalink]  11 Apr 2006, 09:40
Senior Manager
Joined: 11 Nov 2005
Posts: 339
Location: London
Followers: 1

Kudos [?]: 4 [0], given: 0

Re: Challenge Question [#permalink]  11 Apr 2006, 09:54
A.

458,600-324,700 =133,900

tens digit 2 and units digit 1 this mean 21, this number will appear once in every 100.

133900/100 = 1339

yach wrote:
Director
Joined: 08 Jun 2004
Posts: 506
Location: Europe
Followers: 1

Kudos [?]: 6 [0], given: 0

Re: Challenge Question [#permalink]  11 Apr 2006, 10:19
SunShine wrote:
A.

458,600-324,700 =133,900

tens digit 2 and units digit 1 this mean 21, this number will appear once in every 100.

133900/100 = 1339

yach wrote:

Great explanation.
Director
Joined: 10 Oct 2005
Posts: 732
Followers: 3

Kudos [?]: 10 [0], given: 0

Re: Challenge Question [#permalink]  11 Apr 2006, 11:20
SunShine wrote:
A.

458,600-324,700 =133,900

tens digit 2 and units digit 1 this mean 21, this number will appear once in every 100.

133900/100 = 1339

yach wrote:

Bravo!!!!10x very useful
_________________

IE IMBA 2010

Senior Manager
Joined: 24 Jan 2006
Posts: 256
Followers: 1

Kudos [?]: 2 [0], given: 0

How many integers between 324,700 and 458,600 have tens digit 2 and units digit 1?

1,339
1,352
1,353
10,030
10,300

number should be ending with 21
we get 21 after every 100 nos
so, answer is (458600-324700)/100 = 1339
Similar topics Replies Last post
Similar
Topics:
how many integers between 324,700 and 458,600 have tens 2 13 Jan 2005, 18:53
How many integers between 324,700 and 458,600 have tens 3 25 Jan 2005, 09:44
How many integers between 324,700 and 458,600 have tens 3 07 Oct 2005, 11:46
How many integers between 324,700 and 458,600 have tens 3 09 Mar 2007, 13:09
How many integers between 324,700 and 458,600 have tens 2 26 Jan 2008, 04:28
Display posts from previous: Sort by