Decrease 240 km by \( 15 \% \)

To decrease 240 km by 15%, you first need to find out what 15% of 240 is. This is done by multiplying 240 by 0.15, which gives you 36 km. Now, subtract the 36 km from the original 240 km: \( 240 - 36 = 204 \) km. So, after decreasing 240 km by 15%, you’re left with 204 km! Remember, percentages can come in handy in various aspects of life. For instance, if you ever want to give a discount, simply apply the percentage decrease just like this. It’s a practical tool whether you’re negotiating prices, planning travel time, or even calculating calories in your meal!