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?
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.
(i)Marks given for one correct answer = 3
Marks given for 12 correct answers = 3 x 12 = 36 Radhika scored 20 marks.
Therefore, Marks obtained for incorrect answers = 20...