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Analysis of six-year math problems in primary school! Urgent need! ! !
When they met, the ratio of distance traveled by Liang Xiao and Xiao Ming was 3600: (10800-3600) =1:2. After Xiao Liang speeds up, the ratio of the distance traveled by Liang Xiao and Xiao Ming is 1 * 3: 2 = 3: 2.

Xiaolianghang 10800 * 3/(3+2) = 6480m.

Xiao Ming left 10800-6480=4320 meters. Xiao Ming walked less than before in 10 minutes 10800-3600-4320 meters, so Xiao Ming's speed is: (10800-3600-4320)/65430.

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