Question

a total of 8000 runners started a long distance race. the results of the race are listed below.
3/16 of the runners finished the race in less than 4 hours
.65 of the runners finished the race in 4 hours or more hours.
the rest of the runners did not finish the race
calculate the number of runners who finished the race in less then 4 hours.
calculate the number of runners who did not finish the race