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A test consists of ‘True’ or ‘False’ que...

A test consists of ‘True’ or ‘False’ questions. One mark is awarded for every correct answer while `1/4` mark is deducted for every wrong answer. A student knew answers to some of the questions. Rest of the questions he attempted by guessing. He answered 120 questions and got 90 marks.

If answer to all questions he attempted by guessing were wrong, then how many questions did he answer correctly?

Text Solution

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The correct Answer is:
96 questions correctly.
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