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Xiaogang and Xiaoqiang set out from a and B at the same time. Xiaogang rode a bicycle and Xiaoqiang walked along the same route at an average speed. Two hours after starting, they met, Xiaogang travels 24km more than Xiaoqiang when they meet. 0.5h after they meet, Xiaogang arrives at place B. what are their travel speeds? How long does it take Xiaoqiang to arrive at place a after they meet
From the fact that Xiaogang traveled 24km more than Xiaoqiang after two hours of meeting, Xiaogang walked 12km faster than Xiaoqiang every hour
If the rigid velocity x is small, the strong velocity X-12 is small
0.5X=（X-12)x2
The solution is x = 16
Xiaoqiang's speed is 16-12 = 4, and the distance between a and B is 16x2.5 = 40. After Xiaoqiang meets, it will take 40 △ 4-2 = 8 to complete the whole journey
Xiaogang and Xiaoqiang start from a and B at the same time. Xiaogang rides a bicycle and Xiaoqiang walks
Xiaogang and Xiaoqiang set out at the same time from a and B, which are 40km apart. Xiaogang rode a bicycle and Xiaoqiang walked along the same route at a constant speed. Two hours after starting, they met. When they met, Xiaogang traveled 24km more than Xiaoqiang. What were their respective speeds? How long did it take Xiaoqiang to arrive at a after they met? (a one-way equation!)
If Xiaogang has driven x km, Xiaoqiang has driven x-24 km
x+x-24=40
2x=64
x=32
The speed of Xiaogang is: 32 △ 2 = 16 (km / h)
Xiaoqiang's speed is: (40-32) △ 2 = 4 (km / h)
After meeting, the time for Xiaoqiang to land a is: 32 △ 4 = 8 (hours)
Xiao Lin is 136 cm tall, Xiao Qiang is 132 cm tall, and Xiao Gang is 2 cm taller than the average height of the three of them. How many cm is Xiao Gang tall?
（136+132）÷2+2
=134+2
=136 cm
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