Kiara tutors 20 hours each month at the library. she tutored for 2 1/3 hours the first week and 1.5 hours the second week. how many more hours does she need to tutor this month? what type of problem is this, and why? a part-whole problem, because the time she still needs to tutor is unknown. a part-whole problem, because the time tutored this week is part of the time tutored last week a comparison problem, because the number of hours tutored last week is compared to the number tutored this week a comparison problem, because the number of hours tutored already is compared to the total number of hours she will tutor