In a test (+4) marks are given for every correct answer and (-2) marks for every incorrect answer. Radhika scored 20 mar...
Type: MCQ • Marks: 1
In a test (+4) marks are given for every correct answer and (-2) marks for every incorrect answer. Radhika scored 20 marks. If she got 10 correct answers, how many incorrect answers did she attempt?
Options
A. 12
B. 8
C. 10
D. 5
Explanation
Marks from correct answers = 10 × 4 = 40. Total score = 40 + Incorrect = 20 => Incorrect = -20 marks. Number of incorrect answers = -20 / (-2) = 10.
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Class 7thGanita Prakash 2
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