please do only part (a) calculation of payback period

2. Camcor Inc. is considering two mutually exclusive projects. The required rate of return for both projects is 15%. a) Calculate the Payback Period for each project. Year 0 1 2 3 4 Project A Cash flows (175,000) b) 65,000 85,000 75,000 55,000 Calculate the NPV for each project. Project B Cash flows (280,000) 100,000 140,000 120,000 80,000 O