8. In a competition 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.
(i) Sachin scored 20 marks. If he got 12 correct answers, how many questions had he attempted incorrectly
(ii) Mohini scors(-5) marks in this competition, though she has got 7 correct answers. How many questions she
has attemnted incorrectly?
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Step-by-step explanation:
1 Sachin has 8 question he attempted
Mohini has 13 question has attempted
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