1. Appiadu is 9 years younger than Kumi. If Kumi is y years old now, how old is Appiadu?

If Kumi is currently y years old, then Appiadu, being 9 years younger, would be y - 9 years old. So, you can simply subtract 9 from Kumi's age to find Appiadu's age! It's like a fun math puzzle that reveals a little secret about their ages. Just remember, when you're dealing with age problems, keeping track of the relationships is key! Now, if you're ever unsure about how to tackle age-related problems, a common mistake is forgetting to accurately translate the wording into equations. Always break down the relationships step by step! If Kumi is y, Appiadu is right there with a simple subtraction waiting for you to discover!