GMAT: Data sufficiency 23 | Data sufficiency | GMAT | Khan Academy
Watch video GMAT: Data sufficiency 23 | Data sufficiency | GMAT | Khan Academy online without registration, duration 10 minute 30 second in high sd quality. This video was added by user Khan Academy 11 December 2008, don't forget to share it with your friends and acquaintances, it has been viewed on our site 9 thousand once and liked it 12 people.