Answer the following: (Show all working) 1. What will be the value in 2 years of $1,500 earning simple interest of 7.5% p.a.? 2. Jane earns $300 interest over four years on her investment of $1,200. What annual simple interest rate does this represent? 3. Calculate the simple interest on $2,000 deposited for two years at a rate of 6.75%. 4. An investor wishes to have an amount of $8,400 on maturity in five years time. The money can be invested at a simple interest rate of 8% p.a. How much money should be invested today in order to achieve this goal? 5. I have $4,000 to invest today at 8.0% p.a. simple interest. How long will it take for my investment to accumulate to $8,000? 6. If Lim Sim invested $50,000 in an account earning 8% per year, simple interest, a) How much would Lim have in the account after 6 years? b) How much would Lim have if he invested the money in an account earning 6% per annum