Question

In class test containing 15 questions ,4 marks are given for every correct answer and (-2)marks are given for every incorrect answer .(1) Bharathi attempts all questions but only 9 answers are correct . what is her total score ? (2) one of her friend hema attempts only 5 questions and all are correct .what will be her total score . do this problem in full solution
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Answer 1

Answer:

Total question = 15

15Marks for correct answer = +4

15Marks for correct answer = +4Marks for incorrect answer = -2

Bharathi Marks : 24

9 correct answer + 6 incorrect answer

9 × (+4) + 6 × (-2)

36 + (-12)

24

Hema Marks : 20

5 correct answer

5 x (+4)

20