China Naming Network - Fortune telling knowledge - The weather in Jalu town
The weather in Jalu town
1 min =60 seconds,
[(6+4)×60- 100]÷(6+4)
=[ 10×60- 100]÷ 10,
=[600- 100]÷ 10,
=50 (seconds);
4×(60-50)
=4× 10,
=40 (meters);
6×(60-50)
=6× 10,
=60 (meters).
Answer: After 50 seconds, A and B can see each other. At this time, A and A are 40 meters apart, and B and A are 60 meters apart.