There are 20 questions in a math quiz. For each correct answer 5 marks will be given, 2 marks will be deducted for the wrong answer. How many questions does Andy answers wrongly if he scores 72 marks in total? *
Answers
Answered by
1
Answer:
wrong answer 14
Step-by-step explanation:
Marks obtained = 72
wrong answer = 100 - 72= 28
wrong answer= 28÷2 = 14
Answered by
1
answer is 14
total obtained =72
total marks= 20×5
100
wrong answers marks= 100-72
28
the deducted marks = 2
so, wrong answers is = 28÷2
14 ans
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