In: Economics
B. A series of 25 end-of-year deposits beginning with $1135 at the end of year 1 and increasing by $260 per year with a 6% interest rate. What Uniform Series of deposits would result in the same cumulative balance? $
C. John makes 35 end-of-year deposits into a retirement account that returns 5.0.% per year compounded annually. His first deposit is $7500 and he increases the deposits by 8.9% each year. How much will be in the account immediately following the 35th deposit? $
B. A series of 25 end-of-year deposits beginning with $1135 at the end of year 1 and increasing by $260 per year with a 6% interest rate. What Uniform Series of deposits would result in the same cumulative balance?
Answer –
Cash flow in the 1st year – 1135 (A1)
Increases by 260 per year (Gradient)
Rate of Interest – 6%
Calculate the Uniform Series deposits.
Annual Cash flow = A1 + G (A/G, 6%, 25)
Annual Cash flow = 1135 + 260 (9.0722)
Annual Cash flow = 3494
C. John makes 35 end-of-year deposits into a retirement account that returns 5.0% per year compounded annually. His first deposit is $7500 and he increases the deposits by 8.9% each year. How much will be in the account immediately following the 35th deposit?
Answer –
Cash flow in the 1st year – 7500 (A1)
Increases by 8.9%
Number of years – 35
Rate of interest – 5%
PW of the geometric gradient series = A1 (1 – (1+g)^n (1+i)^-n) ÷ i – g
PW of the geometric gradient series = 7500 (1 – (1+.089)^35 (1+0.05)^-35) ÷ .05 - .089
PW = 496,884
Future Value at 35th year = 496,884(1+i)^35
Future Value at 35th year = 496,884(1+.05)^35
Future Value at 35th year = 2,740,820 (Approx)