A cyclist covers 45 miles in 3 hours. If they increase their speed by 5 mph, how many hours will it take to cover the same distance?

Wed, 06 May 2026 05:38:08 +0000

**A cyclist covers 45 miles in 3 hours. If they increase their speed by 5 mph, how many hours will it take to cover the same distance?** Curious about the real math behind this common cycling question? The answer lies in the quiet power of consistent pace and simple speed calculations. A cyclist covering 45 miles in exactly 3 hours maintains a steady 15 miles per hour. When that pace increases by 5 mph, the new speed becomes 20 miles per hour. At 20 mph, the same 45-mile distance takes just 2.25 hours—less than 2 hours and 15 minutes. This transformation illustrates how small speed adjustments dramatically impact travel time, making it a frequently discussed topic among fitness enthusiasts and commuters navigating daily routes in the U.S. This question isn’t just about numbers—it’s tied to growing interest in endurance training, sustainability, and efficient urban mobility. As more Americans explore cycling for fitness, commuting, or environmental reasons, understanding basic performance metrics like speed and distance becomes practical knowledge. Increasing speed by 5 mph reflects a realistic goal many cyclists aim for, whether training for a race, reducing time on the road, or optimizing daily travel. To break it down clearly: speed equals distance divided by time. Originally, 45 miles in 3 hours equals 15 mph, a reliable pace for moderate riding. Raising speed to 20 mph means dividing the same 45 miles by 20, resulting in 2.25 hours. That’s 2 hours and 15 minutes—showing a nearly 25% reduction in travel time. This quick shift tells a compelling story: consistency combined with incremental effort delivers measurable gains.