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What is the answer to the sixth question on page 55 of the eighth grade mathematics book in Hunan Province?
1) Xiao gang y = 40t+80Xiaoqiang Y = 60t(t & gt；; =0)

2)

3)4 minutes

4) It takes five and a half minutes for Xiao Gang to reach B and five minutes for Xiao Qiang.

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