How many meters are in 42.195 kilometers?

How many meters are in 42.195 kilometers?

• A. 4,219.5
• B. 42,195
• C. 421.95
• D. 4,219,500

Answer: (B)

The main idea is converting units using the relationship between kilometers and meters: 1 kilometer equals 1000 meters. To get meters from kilometers, multiply by 1000 (or move the decimal three places to the right). For 42.195 kilometers, moving the decimal three places right gives 42195 meters, i.e., 42,195 m. So the number of meters is 42,195. The other options come from misplacing the decimal: for example, moving the decimal a different number of places would yield values like 4,219.5 or 421.95 or 4,219,500 meters.

The main idea is converting units using the relationship between kilometers and meters: 1 kilometer equals 1000 meters. To get meters from kilometers, multiply by 1000 (or move the decimal three places to the right). For 42.195 kilometers, moving the decimal three places right gives 42195 meters, i.e., 42,195 m. So the number of meters is 42,195. The other options come from misplacing the decimal: for example, moving the decimal a different number of places would yield values like 4,219.5 or 421.95 or 4,219,500 meters.