In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and 0 for questions not attempted. A student named Reshma gets five correct answers and five incorrect answers, what is her score?

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answer is D.

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Detailed Solution

Concept: Multiply the respective marks awarded to determine the points for correct and incorrect responses, then sum them.
Given that Reshmma receives 5 points for every response that is accurate and -2 for every answer that is incorrect.
Ten questions have been answered by her, five of which have been correctly answered and five have not.
Therefore, five points are given for each accurate response.
Consequently, the total points awarded for five right responses are

5 \times 5

or 25.
Every incorrect response results in a mark deduction of 2.
The marks subtracted for five wrong responses are

(5 \times (- 2))

=10
Reshma's grade is therefore =Marks received for right answer + Marks are deducted for incorrect answers.
=25-10=15
Hence, the correct option is (4) 15 .

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