Question

In a quiz,(-3) marks are given for a correct answer and (-2) marks for an incorrect answer. Radhika answered all tge questions and scored 30 marks.If she got 18 correct answers how many questions did she attempt incorrectly

Answer 1

marks given for correct answer=(-3) marks

marks for incorrect answer=(-2)marks

Radhikas score=30

so,no.of correct answers=18

so,marks=18×3=54

so,difference=54-30

=24

Now,no.of incorrect answers=24÷2

=12

Hence,she attempted 12 questions incorrectly.

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