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In the sixth grade, the first volume of mathematics is a lesson and an exercise.
1. Let Party A and Party B each borrow X Y Yuan, and solve the equation X+Y = 680.12x+0.13y = 8.42.

Or 0.12x+0.13 (68-x) = 8.42, with Party A's loan of10,000.00 yuan and Party B's loan of 680,000.00 yuan.

X=42 Y=26。

2. Let the speed of A be x and the speed of B be X+ 12. According to the meaning of the question, 4*(X+ 12)= 1.5*4*X, and X=24 is calculated.

Distance between the two places = 4 * (24+24+ 12) = 240km.

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