In an examination 20 problems are given. Each correct answer earns 5 marks and 2 marks are deducted for every wrong answer. Ashish answered all questions and got 72 marks. Find the number of correct answers given by him.
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16 questions were correct 4 were wrong
anjul95:
plz solve
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No of problems=20.
Marks obtained for correct answer=5
No if marks deducted for wrong answer=2
No of marks which got=72
No of correct answers by him=16
No of wrong answers=4
Marks obtained for correct answer=5
No if marks deducted for wrong answer=2
No of marks which got=72
No of correct answers by him=16
No of wrong answers=4
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