It is currently 21 Nov 2017, 05:39

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

exponent easy question

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Intern
Joined: 08 Jan 2007
Posts: 17

Kudos [?]: 1 [0], given: 0

exponent easy question [#permalink]

Show Tags

17 Sep 2007, 14:07
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Hi guys I wantd to know how you would solve a problem like this

10^3*4^2=2^n*5^2

This may be written wrong but I basically want to know what steps you take to solve for the N.

thanks in advance

Kudos [?]: 1 [0], given: 0

Director
Joined: 11 Jun 2007
Posts: 909

Kudos [?]: 293 [0], given: 0

Re: exponent easy question [#permalink]

Show Tags

17 Sep 2007, 14:15
nitostyle wrote:
Hi guys I wantd to know how you would solve a problem like this

10^3*4^2=2^n*5^2

This may be written wrong but I basically want to know what steps you take to solve for the N.

thanks in advance

change the LHS bases to match with the RHS:

so 10^3 = 2^3 * 5^3
4^2 = 2^2 * 2^2

Kudos [?]: 293 [0], given: 0

Intern
Joined: 08 Jan 2007
Posts: 17

Kudos [?]: 1 [0], given: 0

Re: exponent easy question [#permalink]

Show Tags

17 Sep 2007, 14:25
beckee529 wrote:
nitostyle wrote:
Hi guys I wantd to know how you would solve a problem like this

10^3*4^2=2^n*5^2

This may be written wrong but I basically want to know what steps you take to solve for the N.

thanks in advance

change the LHS bases to match with the RHS:

so 10^3 = 2^3 * 5^3
4^2 = 2^2 * 2^2

Ok I get this part now, thank you. but how do you get the value of N?
if you know one off your head you can use as an example that would be really helpful

thank you

Kudos [?]: 1 [0], given: 0

VP
Joined: 10 Jun 2007
Posts: 1434

Kudos [?]: 370 [0], given: 0

Re: exponent easy question [#permalink]

Show Tags

17 Sep 2007, 18:49
nitostyle wrote:
Hi guys I wantd to know how you would solve a problem like this

10^3*4^2=2^n*5^2

This may be written wrong but I basically want to know what steps you take to solve for the N.

thanks in advance

You have to make the base the same, but in this case, it is not possible and I think the question is wrong...

10^3*4^2=2^n*5^2
(5*2)^3 * (2^2)^2 = 2^n * 5^2
5^3 * 2^7 = 2^n * 5^2

Still left with 5.

Kudos [?]: 370 [0], given: 0

Re: exponent easy question   [#permalink] 17 Sep 2007, 18:49
Display posts from previous: Sort by

exponent easy question

 post reply Question banks Downloads My Bookmarks Reviews Important topics

Moderator: chetan2u

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.