1. What is the present value of $ 815,400 deposited in 23 years if the rates of interest are 6 percent for the first six years, 7 percent for the next 6 and 8 percent for the remaining period?

A) 119937.64

B) 119947.64

C) 119957.64

D) 119967.64

E) None of the Above

2. In how many years will 2,500 become 8,000 if k=2.5% simple interest per year?

A) 84

B) 86

C) 88

D) 90

E) None of the above