771 - Math - Problem Solving

Question: A piece of equipment cost a certain factory Rs. 600,000. If it depreciates in value, 15% the first year, 13.5% the next year, 12% the third year, and so on, what will be its value at the end of 10 years, all percentages applying to the original cost?

1. 2,00,000
2. 1,05,000
3. 4,05,000
4. 6,50,000