note: may you please solve and explain with using formulas can you solve part ii part and dont wanna excel solution

3. An investment of 1,000 in an account accumulated to 2,500 after 5 years. (i) State the accumulation factor A(0,5). (ii) (a) Find the simple annual interest rate which would give the accumulation factor in part (i). (b) Find the annual compound interest rate which would give the accumulation factor in part (i)