please help me

consider the following two investment projects: Investment A end Investment B of year cash end of year flows cash flows Year 2001 +$200,000 +$100,000 2002 +400,000 +100,000 2003 +400,000 +100,000 2004 +400,000 +800,000 2005 +600,000 +1,000,000 Both projects require an investment of $1,000,000 at the end of 2000. The required rate of return for both projects is 10%. WHAT IS THE PAY BACK PERIOD FOR PROJECT A? WRITE THA ANSWER AS FOLLOWS EXAMPLE 3Y4M2D