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With the equation

13695652010-01-25 09:01:08 +0000 #1
Questions: Sunday afternoon, a school first grade students like to go swimming to swim. Male students with a swimming cap city of white, female students swimming cap is pink, in counting the people, the students found that: It seems every male students, white and pink swimming cap swimming cap as much, in the girls It seems that white pink swimming cap swimming cap more than doubled the number of people men and women
tlyzbcy2010-01-25 09:09:33 +0000 #2
x-1 = y

x = 2 (y-1)

solution was x = 4, y = 3

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