Riphah international is operating two investment companies namely Invest-A and Invest-B with following details: The 1st investment company named as invest-A collects Rs. 10,000 at the end of every year for 20 years and pays the investor Rs. 8,00,000 at the end of the 20th year. While, the 2nd investment company named as invest-B collects Rs. 10,000 at the end of every year for 20 years and pays the investor Rs. 15,00,000 at the end of the 25th year. Analyze the best investment alternative form investor point of view? Use present worth with an interest rate of 10 compounded annually.