Question

a test paper has 20 multiple choice question each correct answer is awarded 3 marks but - 2 marks are given for every wrong answer rashi scores 5 marks in a test if she answers 7 questions correctly find the number of questions she did not answer correctly and also the number of questions she did not attempt​ answer is 5 but how​

Answer 1

Answer:

8

Step-by-step explanation:

Given ,

Total MCQs 20 , she attempted 15(20-5)

7 has been answered correctly hence she gets 7×3=21

She was awarded 5 hence 21 - 5 = 16

ie. for each wrong carries -2 , therefore 8×-2=-16

Hope it helps you