M7MBA wrote:Which of the following has the same value as 5^6?
A. 30
B. 25^2
C. 50^3
D. 125^2
E. 250^3
Since the 5� = 5*5*5*5*5*5 = odd, the correct answer must also be odd and thus cannot have a units digit of 0.
Eliminate A (30), B(50) and E(250).
B: 25² = (5²)² = 5�.
Eliminate B.
The correct answer is
D.
D: 125² = (5³)² = 5�.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at
[email protected].
Student Review #1
Student Review #2
Student Review #3