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# GMAT: Math 13

70-75, pg. 161. Created by Sal Khan.

## Want to join the conversation?

• For 72, I did 40/3 and that gave me 13 because that's one-third of 40. 1/3 can still vote against it and 2/3 can vote for it and still have it pass. Use if that's easier for you.
• Louis walks 8 1/3 miles in the morning and 3 4/5 miles in the afternoon. how many miles did Louis walk that day
• how can i get the worksheets for this lesson let me know Thanks
• i guess so far the new edition of the book is a bit more difficult (at least in my opinion)
(1 vote)
• So, lets say i add (5+2+1)and then i divided to 1800 by that.And i us the amount in each unit .....butt i add it a different way wut do i get then.
(1 vote)
• about problem 74, w + m = 10, w = m + 4
> m +4 + m = 10 >>> 2m = 2 >>> m = 1.
If class have 10 people >> m= 2, w = 8.