Due to availability of scarce resource like money, a firm decided to invest his money in either project A or project B or both. If he decides to invest in project A, he is assured of doubling his money in ten years. If he decided to invest in project B, he is assured of making his money 1.5 times in 5 years. If the firm values his money at 10% interest rate, whether he invested in project a & B, a or B, or not make any of the project a or B.