While studying for the GMAT, found this information and thought it would be good to share, seeing as how the test prep books all say that you can only find if a number is divisible by 7 through long division (Manhattan GMAT, Number Properties - updated for 12th Edition - page 14).
Showing posts with label 7. Show all posts
Showing posts with label 7. Show all posts
Wednesday, June 29, 2011
Subscribe to:
Posts (Atom)
