19. In a class test containing 15 questions, 4 marks are given for every correct answer and
(–2) marks are given for every incorrect answer. (i) Bharathi attempts all questions but
only 9 answers are correct. What is her total score? (ii) One of her friends Hema attempts
only 5 questions and all are correct. What will be her total score?
i will mark you as brainlist
Answers
Answered by
0
Answer:
All are correct. Total score = 4x - 2y = 4(5) - 2 (0) = 4(5)= 20 . Therefore, Bharathi score is 24 , Hema score is 20
Answered by
1
Answer:
Total questions = 15
Mark for correct answers = 4 marks
Mark for incorrect answer = -2 marks
(i) Bharathi attempted 15 questions .
Correct answers = 9 x 4 = 36 marks
Incorrect answers = 6 x -2 = -12 marks
Total marks = 36 - 12 = 24 marks
(ii) Hema attempted 5 questions.
Correct answers = 5 x 4 = 20 marks
Total marks = 20 marks
Similar questions