A company wants to buy one of two machines: machine X or machine Y. The present worth of machine X over a life span of 3 years is $2,200 at an interest rate of 10% per year compounded annually whereas the present worth of machine Y over a life span of 6 years is $ 3,500 at the same interest rate. Based on the present worth criterion, which machine should the company pick?

PLEASE HELP ASAP. dont use excel. solve by hand