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## Question Test OG, maybe easy but...still

This topic has 1 expert reply and 4 member replies
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#### Question Test OG, maybe easy but...still

Sun Jan 07, 2007 4:33 pm
5^11 x 4^11= 2x10^n what is "n"?
Please show me "all the steps" thank you

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### GMAT/MBA Expert

Stacey Koprince GMAT Instructor
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Fri Jan 26, 2007 11:49 pm
Hi, Isis - please be sure to use parentheses to make your problem clear. Thanks!

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kandelaki Senior | Next Rank: 100 Posts
Joined
05 Feb 2007
Posted:
37 messages
Tue Feb 27, 2007 11:38 pm
i wonder can you do this 5^11*4^11=20^11 ??

### GMAT/MBA Expert

Stacey Koprince GMAT Instructor
Joined
27 Dec 2006
Posted:
2228 messages
Followed by:
680 members
639
GMAT Score:
780
Fri Jan 26, 2007 11:49 pm
Hi, Isis - please be sure to use parentheses to make your problem clear. Thanks!

_________________
Please note: I do not use the Private Messaging system! I will not see any PMs that you send to me!!

Stacey Koprince
GMAT Instructor
Director of Online Community
Manhattan GMAT

Contributor to Beat The GMAT!

Free Manhattan Prep online events - The first class of every online Manhattan Prep course is free. Classes start every week.
kandelaki Senior | Next Rank: 100 Posts
Joined
05 Feb 2007
Posted:
37 messages
Tue Feb 27, 2007 11:38 pm
i wonder can you do this 5^11*4^11=20^11 ??

axefx Newbie | Next Rank: 10 Posts
Joined
01 Dec 2006
Posted:
9 messages
Thu Jan 25, 2007 12:10 pm
10 X (multiplied)
If the question is:
(5^11) * (4 ^ 11) = (2 * 10)^n

(5^11) * (4 ^ 11) = (2 * 10)^n
= (5 * 4) ^ 11 = (2 * 10)^n
= (20)^11 = (20)^n
i.e. n = 11

If the question is:
(5^11) * (4 ^ 11) = 2 * (10^n)
Then I don't know how to solve this question and will appreciate the answer

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