Question

Mohini Scores (-5) marks in this test though she has
got
7 correct answers How
attempted incorrectly?
many answers has she​

Answer 1

Answer:

5 marks in this test, though she has got 7 correct answers. How many questions has she attempted incorrectly? Therefore, Mohini attempted 13 incorrect questions

Answer 2

Answer:

Total marks = -5

No of correct answers = 7 Marks for correct answers = 7 × 3 = 21

Also, Marks for incorrect answer = (-2) × No. of incorrect answers

Marks for not attempt answer = 0 × No of not attempt answers

Now, Total marks = marks for correct answer + marks for incorrect answer + marks for not attempt -5 = 21 + (-2) × No. of incorrect answers + 0 -5 – 21 = (-2) × No. of incorrect answers -26 = -2 × No. of incorrect answers −26 −2 = No. of incorrect answers 13 = No, of incorrect answers.

∴ Mohini attempted 13 questions incorrectly.

I really hope it helps you