Posted by sophia on Friday, November 6, 2009 at 12:05am.
You really have to write these down, one by one, and rearrange them in the order that they link to each other, to make sense of them.
When you've got too much information to take in at one time, you need to stop, write each piece down, understand each one, then link them together.
matt ran 4/5 mile on friday
F = 4/5
he ran 7/10 mile more on friday than on wednesday. OK, since we know Friday, that gets us Wed.
W = F - 7/10 = 4/5 - 7/10
he ran 1/2 mile less on wednesday than he did on monday. We know Wed., so we can get Mon.
W = M + 1/2
matt ran 1/5 mile less on monday than on tuesday. And from Monday, we finally get Tuesday.
T = M + 1/5
Now we can work back:
Friday = 4/5
Wednesday is 7/10 less than that
Monday is 1/2 more than Wednesday
Tuesday is 1/5 more than Monday.
4/5-7/8/10-7/10+1/2=6/10+1/5=8/10
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