Chances of scoring 80% in a Test

Question

The table below shows the format of a Test consisting of 25 questions.
Every correct answer is allocated one mark.
             Section            Number of Questions                     Type of Questions
                I                           13                                       Multiple-choice (A,B,C,D)
                II                           7                                        Tick “✔” or “x”
                III                          5                                        Fill in the blank with the correct answer.

Kathy sits for the Test and she answered all the questions in Section I and II and only 3 questions from Section III.
It is found that 9 of her answers in Section I, 5 answers in Section II and all her answers in Section III are correct.
Calculate the chances Kathy will score 80% in the Test.

Answer 1

(9 + 5 + 3)/25 = .68