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In a test, 1 mark is awarded for each correct answer and one mark is deducted for each wrong answer. If a boy answers all 20 items of the test and gets 8 marks, the number of questions answered correct by him was
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- 16
- 14
- 12
- 8
Correct Option: B
Let the number of correct answers be x
∴ The no. of incorrect answers = 20 – x
According to the question,
x – (20 – x) = 8
⇒ x – 20 + x = 8
⇒ 2x = 28 ⇒ x = 14
