10. Calculate the IRR of a machine which is bought for 516,000 , sold at the end of vear 10 for 52,000, and produces the following cash flows year 1) +52,600; year 2)+51,950; year 3 ) +51,350; year 4)+$1,500; vears 510 each }+5$00 11. Calculate the IRR of a machine which is bought for 514,000 , sold at the end of year 6 for $3,500, and produces the following cash flows: year 1) +5700; year 2) +51,600; year 3) +$1,250; year 4)+$2,400; years 57each)+$1,800 12. Calculate the IRR of a machine which is bought for $51,000, sold at the end of yeav for \$21,500, and produces the following cash flows: year 1) +51,700; year 2) +$6,100; year 3) +$00; year 4)+$4,100; years 58 cach +3,100