In the round field of 1000 meters, three people compete. A is 5% faster than B, B is 5% slower than C. B can ride 6 laps in 10 minutes. How far is the distance between a and C accurate to 0.1 meters

In the round field of 1000 meters, three people compete. A is 5% faster than B, B is 5% slower than C. B can ride 6 laps in 10 minutes. How far is the distance between a and C accurate to 0.1 meters

V b = 6 * 1000 / 10 = 600 m / min
V a = v b * (1 + 5%) = 630m / min
V b = v c * (1-5%) V C = 631.58 M / min
Distance S = 10 * (vpc-va) = 15.8m

Party A and Party B start from a and B at the same time. Every minute, Party A walks 200 meters and Party B walks 250 meters. When they meet, they are 400 meters apart. How many meters is the distance between a and B?

Draw a line diagram, you can easily understand
(200 + 250) × 10-400 = 4100m