Page 1 of 1 [ 2 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: GMAT Prep Problem #1Posted: Wed Nov 16, 2011 10:04 am

Joined: Wed Nov 16, 2011 9:56 am
Posts: 1
What is this = to?
(2^5)+(2^5)+(3^5)+(3^5)+(3^5)

I selected 13^5
Correct answer 2^6 +3^6

Also,
Please explain problem Problem# 3 page 8 in Algebra Book.

thanks,

Top

 Post subject: Re: GMAT Prep Problem #1Posted: Wed Nov 16, 2011 5:35 pm

Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
(2^5)+(2^5)+(3^5)+(3^5)+(3^5)

2 * (2^5) + 3 * (3^5)

2 * 2*2*2*2*2 + 3 * 3*3*3*3*3

2^6 + 3^6

#3

2^(4x) + 2^(4x) + 2^(4x) + 2^(4x) = 4^24

4 * 2^(4x) = (2^2)^24

4 * 2^(4x) = 2^48

4 * 2^(4x) = 2^2 * 2^46

4 * 2^(4x) = 4 * 2^46

2^(4x) = 2^46

4x = 46

x = 11.5

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 2 posts ]

 All times are UTC - 8 hours [ DST ]

#### Who is online

Users browsing this forum: No registered users and 0 guests

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

 Search for: