Question 5: One project has the following benefits and cash flows at the discount rate of 10% Benefits Costs OSR /Month for year 1 300SR /Month for year 1 350SR /Month for year 2 250SR /Month for year 2 400SR /Month for year 3 200SR /Month for year 3 450SR/Month for year 4 150SR /Month for year 4 500SR/Month for year 5 100SR/Month for year 5 A: Calculate yearly cash flows and NPV in Excels spreadsheet. B: What will be effects on NPV if there is a reduction of 50 SR monthly benefits in year 2 to 5 and 100 SR per month increase in cost from year 1 to 5