Mathematics, 02.07.2019 07:30 dearydn22

There are 20 questions in a mathematics competition. 5 marks are awarded for each correct answer, while 1 mark and 3 marks are deducted for each blank answer and wrong answer respectively. if roger has given 10 correct answers and 6 wrong answers, (a). how many questions does he leave blank? (b). how many marks can he get?

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