In a class test (+3)marks are given for every correct answer and (-2) marks are given for every incorrect answer and no marks for not attempting any question. Radhika scored 20 marks, if she has got 12 correct answers, how many questions has she attempted incorrectly?
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Answer:
l
Step-by-step explanation:
marks for every correct answer = +3
marks for every in correct answer = -2
radhika scored =20
she got 12 correct answers she will gain marks =12×3
=36
them 36-20= 16
16÷-2 =-8
she have attempted 8 incorrectly
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