can you you solve this without excel ?

"P10-14 Internal rate of return for each of the projects shown in the following table, calculate the internal rate of return (IRR). Then indicate, for each project, the maximum cost of capital that the firm could have and still find the IRR acceptable." P10.14 Internal rate of return For each of the projects shown in the following table, calculate the internal rate of the indicate for each project, the maximum cost of capital that the firm could have and find the IRR acceptable Project A Project Project Project af investment (CS 190.000 5450.000 120,000 1340,000 Yeard Cashflows (CR) 1 $20,000 $110.000 $7500 $120,000 12 25 000 150.000 7.500 100.000 3 30 000 150 000 7.500 00.000 35 000 150.000 7500 60 000 5 40 000 7.500