Question

Петя и Юра одновременно выбегают с разных концов беговой дорожки навстречу друг другу . У пети скорость 130 м мин а у юры скорость 170 м мин Какова длина беговой дорожке если они встретились через 3 мин?

Answer 1

1)170+130=300 
2)300*3=900

Answer 2

1) 130*3=390                                                                        
2)170*3=510
3)390+510=900

Answer 3

Calculation of the Length of the Running Track

To calculate the length of the running track, we need to determine the distance covered by both Petya and Yura in 3 minutes.

Petya's speed is 130 m/min, so in 3 minutes, he would cover a distance of 130 m/min * 3 min = 390 meters.

Yura's speed is 170 m/min, so in 3 minutes, he would cover a distance of 170 m/min * 3 min = 510 meters.

Since Petya and Yura are running towards each other, the total distance covered by both of them would be equal to the length of the running track. Therefore, the length of the running track is 390 meters + 510 meters = 900 meters.

So, the length of the running track is 900 meters.

Please let me know if there's anything else I can help you with!