Hi, can someone show me how to solve this problem without using excel.

A road can be paved with either asphalt or concrete. Concrete costs $15,000/mile and lasts 20 years. What is the maximum that should be spent on asphalt if it only lasts 10 years? Annual maintenance costs for both pavements are $500/mile. MARR = 15%. o o o o $6,014 $7,500 $12,027 $15,000