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In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If jack’s scores in five successive rounds were 25, - 5, -10,15 and 10, what was his total at the end?

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Jack’s scores in five successive rounds are 25, - 5, -10,15 and 10. Total marks got by Jack = 25 + (-5)  +(-10) + + 15 +10 = 25 – 15 + 25 = 35 Thus, 35 marks are got by Jack in a quiz.

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