SOLUTION: Bob has graded 15 out of 26 exams. a. What proportion of all exams has bob graded? b. What was the ratio of graded to ungraded?

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Question 1133363: Bob has graded 15 out of 26 exams.
a. What proportion of all exams has bob graded?
b. What was the ratio of graded to ungraded?
Answer by amarjeeth123(570) About Me  (Show Source):
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a.The proportion of all exams that Bob has graded=15/26*100=57.69%
b.No of ungraded exams=26-15=11
No of graded exams=15
The ratio of graded to ungraded=15:11