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Xiao Li, who lives in Chengdu, is going to Mianyang for a meeting. He must arrive at the appointed time. If he drives at 50 kilometers per hour,

Setting: The total distance from Chengdu to Mianyang is x kilometers: X/50-24/60 = X/75+24/60.

Find x, and then set to arrive at y speed, and don't be late.

Y/50-24/60=Y Y/75+24/60, you can calculate y.

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