A train travels 300 km in 4 hours. If it increases its speed by 25% for the next 3 hours, how much distance will it cover in total?

Wed, 06 May 2026 07:21:58 +0000

**A train travels 300 km in 4 hours. If it increases its speed by 25% for the next 3 hours, how much distance will it cover in total?** As Americans weigh shorter commutes and faster intercity travel more than ever, a common question emerges: What happens when a train covering 300 kilometers in 4 hours speeds up by 25% for the next 3 hours? This scenario taps into growing interest in transit efficiency, fueled by rising travel demand and infrastructure innovation. Understanding the math behind such speed adjustments not only clarifies the total distance traveled but also reveals broader trends in how rail transportation is adapting to modern needs. ### How Fast is the Train Going at First?
The train’s initial speed is determined by dividing distance by time. Traveling 300 km in 4 hours yields a steady pace of 75 kilometers per hour (km/h). This baseline speed reflects typical regional rail services, offering reliable but not exceptional travel timing. While not the fastest, such consistency is key to schedules and passenger planning across the U.S. rail network. ### The Impact of a 25% Speed Increase Over 3 Hours
Boosting speed by 25% means the train now runs at 125% of its original 75 km/h. Calculating this increment: 75 km/h × 1.25 equals 93.75 km/h. Over the next 3 hours, the train covers 93.75 km per hour, resulting in 281.25 kilometers traveled during that period. This shift illustrates how small percentage gains multiply with time—turning moderate progress into measurable improvement.