Question of The Day11-02-2021
In an examination, there are 100 questions. There is a negative marking of -12 marks marks and maximum marks for the paper is 200. If Ravi attempts only 80 questions and got 115 marks, what is the count of Ravi's wrong questions?
Answer
Correct Answer : a ) 18
Explanation :According to the question,
Total marks for the examination are = 200
Thus, marks for each correct question will be = 200/100 = 2 marks
Let us assume total incorrect questions attempted by Ravi = x
Thus, the correct question attempted by Ravi = 80 – x
Now, according to the question
Correct marks – Incorrect marks = 115
⇒
⇒
⇒ 5x = 45 * 2
⇒ x = 18
Therefore, total incorrect questions for Ravi = 18 questions
Hence, (a) is the correct answer.
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