Whilst drilling 8.5 inches, 10,100 ft depth hole with 5, 19,5 lb/ft, G105, 2 drill pipe and 500 ft of 6.25" x 2.8105" drill collar using 10.15 ppg mud, there is 15 bbls mud increase in the mud pit. The drillers stop the pumping and recorded shut-in drill pipe pressure equals to 115 psi and shut-in casing pressure equals to 123 psi. To kill the well, the drillers plan to the use Engineer's method with overbalanced 150 psi and kill rate of 14 strokes per minute at 600 psi circulation pressure. Calculate: a) Kill mud weight. b) Time to kill the well. c) Stand pipe pressure during a well killing operation