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Solutions to Two Questions in Qidong Math Exercise Book
1, let the distance between Station A and bilibili be xkm, then

(2x-34)/70=(x+34)/52

The solution is x= 122.

2. Let the speed of B be xkm/h, then the speed of A is (3x+1) km/h..

3x+(3-45/60)(3x+ 1)= 25.2 * 2

The solution is x=32 1/65.

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