Out of 50 questions in a test, Jenny answered 78% of them correctly.Each correct answer carries 3 marks and each wrong answer carries a negative marking of one mark. She did not answer 6 questions for which she will neither gain nor lose any mark. Calculate the total mark she scored.
Answers
i.e. 78% of 50 = 39 answers
Correct answer carries 3 marks, so 39x3=117
she did not answered 6 questions
so, her answer was incorrect in (50-(39+6))= 5 questions
so, she lost 5 marks due to negative marking
hence, her final marks = 117-5 = 112
Answer:
112 marks
Step-by-step explanation:
given , total questions = 50 percentage of correct answers =78% correcr answers = 78% of 50 =78/100*50 =39 each question carries 3 marks marks scored = 39 * 3 =117 marks she didnot answer 6 question so , marks = 6 * 0 =0 so , marks lost = 50 - [39 +6] = 50 -[48] marks lost are 5 marks marks scored =117 - 5 = 112 marks . hope it helps