BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

divisor of a

Expert replies
by GmatKiss » Tue Aug 09, 2011 1:14 pm
If a and b are positive integers such that a/b = 2.86, which of the following must be a divisor of a?

a) 10
b) 13
c) 18
d) 26
e) 50
Join the discussion
Source: — Problem Solving |

by Gurpinder » Tue Aug 09, 2011 1:39 pm
GmatKiss wrote:If a and b are positive integers such that a/b = 2.86, which of the following must be a divisor of a?

a) 10
b) 13
c) 18
d) 26
e) 50
.86 = 86/100 --> 43/50
x/50=2.86
x=143

Only (B) is a divisor of 143

Hence (B)
"Do not confuse motion and progress. A rocking horse keeps moving but does not make any progress."
- Alfred A. Montapert, Philosopher.
Join the discussion

by GMATGuruNY » Tue Aug 09, 2011 1:54 pm
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
Join the discussion