Party A and Party B set out from a and B, respectively, and walked in opposite directions. Party A traveled 15 kilometers per hour by bicycle, and Party B traveled 40 kilometers per hour by motorcycle. Party A took the lead by 5000 B set out after a few meters, but they met at the midpoint of a and B. a few hours after B set out, did B meet a? How many kilometers are there between a and B? In terms of equations, let's talk about the equivalency

Party A and Party B set out from a and B, respectively, and walked in opposite directions. Party A traveled 15 kilometers per hour by bicycle, and Party B traveled 40 kilometers per hour by motorcycle. Party A took the lead by 5000 B set out after a few meters, but they met at the midpoint of a and B. a few hours after B set out, did B meet a? How many kilometers are there between a and B? In terms of equations, let's talk about the equivalency

Hello!
Encounter time 5 ÷ (40-15) = 0.2 hours
Distance 40x0.2x2 = 16 km
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Xiaohua rides a bicycle, while Xiaoming rides a motorcycle from two places 80 kilometers apart. After meeting each other on the way, they continue to walk backward. Five hours after starting, they are 205 kilometers apart. Given that Xiaohua travels 15 kilometers per hour, how many kilometers does Xiaoming travel per hour? (solution of a series of equations)

Let Xiaoming travel x kilometers per hour, 15 × 5 + 5x = 205 + 80, 75 + 5x-75 = 285-75, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 5x = 210, & nbsp; & nbsp; 5x △ 5 = 210 △ 5, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 42, answer: Xiaoming travel 42 kilometers per hour

Xiao Pang and Xiao Ding are walking on the same road at the same time. Xiao Pang walks 250 meters per minute, Xiao Ding 200 meters per minute. How long is the road when they meet 200 meters away from the midpoint?

It's known that they met 200 meters from the midpoint,
It can be concluded that Xiao Pang was 200 × 2 = 400 meters more than Xiao Ding when they met;
So, the time it took for them to meet was 400 (250-200) = 8 minutes,
Available: highway length (250 + 200) × 8 = 3600m

The distance between a and B is 2300m. After two minutes of cycling from a, Liangliang sets out on foot from B. after another 10 minutes, they meet and are known to be soldiers
How many meters does Liangliang walk per minute?
We need formula solutions, not equation solutions

100 × (10 + 2) = 1200 m
2300-1200 = 1100m
2 + 10 + 10 = 22 minutes
1100 △ 22 = 50 m / min Walking speed of Liangliang