in a competitive exam, marks for a correct answer is+2 and marks for an innocent answer is -1 Total 10 questions are there Raju got 7 correct and 3 inncotect answer what is his total score
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Step-by-step explanation:
Marks obtained for 1 correct answer = + 2 Marks
Marks obtained for 1 incorrect answer = - 1 Marks
Total number of correct answers by Raju = 7
Total number of incorrect answers by Raju = 3
∴ Marks obtained by Raju in correct answers = 7 × 2 = 14 Marks
And, Marks obtained by Raju by his incorrect answers = 3 × (-1) = -3 Marks
Hence, Raju's total score = 14 Marks + (-3 Marks) = 11 Marks.
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