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Question

In an examination, there are 30 questions, 1 mark is given for each correct answer and 0.25 is deducted for every incorrect answer. Ankur attempted all the questions and scored 13.75 How many incorrect answers did he have?

A
10
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B
11
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C
12
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D
None of these
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Solution

The correct option is D None of these
Let Ankur solved x right questions
His over all score = x(30x)4=13.75
4x - 30 + x = 13.75 × 4
x = 17
Ankur did 13 wrong questions.

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