1.

Herman scored 40 marks in a test, getting 4 marks for each right answer and losing 1 mark for each wrong answer. If the number of wrong answers is 1 less than his number of correct answers, then how many questions did he answer correctly?

Answer»

Herman scored 40 marks in a test, getting 4 marks for each right answer and losing 1 mark for each wrong answer. If the number of wrong answers is 1 less than his number of correct answers, then how many questions did he answer correctly?





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