Subject: Economics

Hello, please handwritten so I can understand. Thank you!

a 350 million was deposited i the bank to take care for the perpetual operation of a public transport, the first cost of the project 1s 150 million with a useful life of 25 years. The end-of-the- year operational expenses of the system is expected to be 5 million. Every 5 years, the system is to be upgraded with a total cost of 15 million. Determine the annual interest required. e e