A skier started from the ski base. 20 minutes after he walked 3,000 m, a second skier stepped out of the same base in the same direction and caught the first one at a distance of 7,500 m from the base. Find the speed of the skiers
1) 3000: 20 = 150 (m / min) – speed of the first skier
2) 7500 – 3000 = 4500 (m) – the first skier rode after the second
3) 4500: 150 = 30 (min) – both skiers moved simultaneously
4) 7500: 30 = 250 (m / min) – speed of the second skier
Answer: 150 m / min, 250 m / min
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.