Asian’s weight increased by 25% from year 2005 to 2009. If his weight was k kilograms in 2009, what was it in 2004?

🧠 Explanation (Math):

Given: 2005→2009 increased 25%; 2009 weight $=k$
Step 1: Earlier $=frac{k}{1.25}=0.8k$.
Final Answer: 0.80k