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A and B in the 400-meter circular track running across the same 1-minute encounter to run a reverse

glgl1101101102010-01-31 01:01:34 +0000 #1
with the one dollar linear equation problem solving
ordinary letter-2010-01-31 01:09:26 +0000 #2
A rate-based X B Y meters per second for

40 * (X + Y) = 400

60 * (XY) = 400

solution was X = 25 / 3

Y = 5 / 3

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