The decimal reduction time for boiling this organism is 5.4 minutes.
Total bacteria = 1000
500 bacteria die in 3 minutes
1000 bacteria will die in 6 minutes
90% of 1000 = 900
900 bacteria will die in = 900 X 3/500
= 27/5
= 5.4 minutes
learn more about decimal reduction time here: https://brainly.com/question/14236533
#SPJ4