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Question: What is the difference between the number of children in Kindergarten and Middle Schools in the year 1985?



A ) about 4,000
B ) about 1
C ) about 400
D ) about 50

Steps to derive

1 In the year 1985, the difference between the number of children = 63000 - 59000 = 4000
 [The height of the two points in the graph corresponding to Kindergarten and Middle schools represent 59 and 63.]

2 So, the difference between the number of children in Kindergarten and Middle schools in the year 1985 is about 4000.



Hence the right answer is Option A

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