be equal to the sum of the ages of his children. What is rate us2. In – InterviewSolution

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1.	be equal to the sum of the ages of his children. What is rate us2. In an examination, one mark is awarded for every correct ansmark is deducted forone mark is awarded for every correct answer whileevery wrong answer. A candidate answered 80 questions and got 60 marks. How many questiondid he answer correctly?
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