UOP Ltd is considering two capital investments. The company's cost of capital is 10% and the tax rate is 31%. The details are as follows:

Particulars	Investment E	Investment F
Cost of investment	16,00,000	20,00,000
Expected life	5 years	5 years
Annual Income (before Tax & Depreciation)	4,25,000	5,50,000

Depreciation is charged on a straight-line basis. You are required to calculate: a. Internal Rate of Return (IRR) b. NPV c. Payback period