To maintain its newly acquired equipment, the company needs P40,000 every year for the first 5 years and P60,000 for the next 5 years. In addition, an amount of P140,000 would be also be needed at the...

To maintain its newly acquired equipment, the company needs P40,000 every year for the first 5 years and P60,000 for the next 5 years. In addition, an amount of P140,000 would be also be needed at the end of the fifth and the eighth years. At 6%, what is the present worth of these costs?