Adding exponents and expression the sum in exponent form!!!

Expert replies

prakashorange: Newbie | Next Rank: 10 Posts; Posts: 2; Joined: Mon Jul 28, 2008 6:13 pm

by prakashorange » Mon Jul 28, 2008 6:16 pm

I saw a GMAT practice question that confused me

What is 2^5+2^5+3^5+3^5+3^5

aparently the answer is 2^6+3^6

How do they arrive at this answer? Any help is greatly appreciated

Like this post

Source: Beat The GMAT — Problem Solving | Mon Jul 28, 2008 6:16 pm

b.kurland: Junior | Next Rank: 30 Posts; Posts: 15; Joined: Mon Jul 14, 2008 2:52 pm; GMAT Score:720

by b.kurland » Mon Jul 28, 2008 6:50 pm

hey prakashorange,

take a close look at the equation: 2^5+2^5+3^5+3^5+3^5 can be written as 2(2^5) + 3(3^5) as a simplified version. the two forms are equal, however the given equation is written out the long way. multiply and this equals 2^6 + 3^6.
hope that helps!

Like this post

prakashorange: Newbie | Next Rank: 10 Posts; Posts: 2; Joined: Mon Jul 28, 2008 6:13 pm

by prakashorange » Mon Jul 28, 2008 7:53 pm

Awesome thanks

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review