Answers to the 33-week travel questions of Grade A in the third and fourth grades of primary school Olympiad

Is it the question "A and B go from A to B at the same time, …"? I found it was in the 34th week.

If this is the question, there is an answer at the back of the book. If you don't understand, you can change your mind. The answer is as follows:

The return journey of Line A is 18km, so it is more than that of Line B 18 * 2 = 36 (km) and more than that of Line B 1 hour. If it takes the same time as that of Line B, it is 36- 12 = 24 (km) more than that of Line B, and A is 65444.

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