Hi, Here is the link to videos on answer explanations to the Quant section of OG11 by Khan Academy.
As Most of the questions are repeated in the later versions of the OG, some people may find the explanations useful.
https://www.khanacademy.org/test-prep/gmat
As Most of the questions are repeated in the later versions of the OG, some people may find the explanations useful.
https://www.khanacademy.org/test-prep/gmat