In a test, correct answers carry +3 marks and wrong answers carry -1 marks. Ramesh answered all the questions. He scored 79 marks, though he made 5 mistakes. Find the number of correct answers?
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Let the number of correct answers be x.
Since Ramesh has made 5 mistakes.
=>Ramesh has attemted 5 incorrect answers.
=>x(3)+5(-1)=79
=>3x-5=79
=>3x=84
=>x=28
=>Ramesh has attemted 28 correct answers.
Hope it is helpful.
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