Question

A train travels at a constant rate of 25 meters per second. How many kilometers does it travel in 5 minutes ? (1 kilometer = 1,000 meters)

• A. 6
• B. 8
• C. 7.75
• D. 7.5

Answer 1

Answer: (D)

7.5

In 1 minute the train travels (25)(60) = 1,500 meters, so in 5 minutes it travels 7,500 meters. Since 1 kilometer = 1,000 meters, It follows that 7,500 meters equals $\frac{7500}{1000}$, or 7.5 kilometers.