If a test consists of 6 questions and marks for correct answer is +3 and wrong answer is -1, then what is the score if Seema has done 4 questions correctly?
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Step-by-step explanation:
if seema has attained all 6 questions then the marks she obtained will be 10.
let she obtained x marks then
1 right answer will provide 3 marks so,
4 right answer will provide 3*4=12.
and she attained another 2 questions which was wrong.
so from total marks she scored subtract the 2 marks of wrong answer
so 12-2=10
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