in a test of 50 questions, ±5 marks are given for each correct answer,-1 mark is given for each incorrect answer and 0 for not attempting. Rahul completed this test with 42 correct answers and 5 incorrect answers. Find marks obtained by Rahul.
Answers
Answered by
11
Answer:
205
Step-by-step explanation:
total questions = 50
marks obtained per correct answer = 5
total correct answer scored by him = 42
Marks obtained for correct answers = 42×5 = 210
Total wrong answers = 5
marks deducted per wrong answer = -1
total marks deducted = -5
Marks scored by rahul = 210 - 5 = 205 Answer
Answered by
5
Answer:
Number of marks for correct answers = +5marks
Number of marks for incorrect answers = -1 marks
Number of answers rahul attempted correctly = 42
Number of answers rahul attempted incorrectly = 5
Marks rahul scored for every correct answers = 42×5 = 210
Marks rahul scored for every incorrect answers = 5×-1 = -5
Total marks rahul scored in the test = 210 - 5 = 205.
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