Could someone assist with this please

CASE STUDY - CALCULATION : FUNDING ARS just and Suppose suzanne wants to start a retirement savings plan. She is currently 30 years old, and plans to retire at age 65 and live to before exact age 85. Her labour income is $250,000 per year, her expected National Insurance benefit is $80,000 per year. She intends to maintain a constant level of real consumption spending over the next 55 years. Assuming no taxes, no growth in real labour inconne, zero inflation, and a real interest of ol. effective per annum, How much must she save in real terms each year until retirement ? [Assume cash flows are paid once per annum at the beginning of the year : Hint, first determine annual consumption]