Suppose you buy a machine that costs £10 000 today and rent it out. You earn a rent of £1500 on that

Suppose you buy a machine that costs £10 000 today and rent it out. You earn a rent of £1500 on that machine every year for four years. After four years the machine can be sold as scrap for £4000. Assume that the interest rate is 10 per cent in all four years. What is the present value of the machine? What is the net present value of the machine? Is the investment worthwhile?