In a class test containing 10 questions, 4 marks are given for every correct answer and (-2)
marks are given for every incorrect answer. Gurpreet attempt all questions. What will be her
score if :
(i) 6 of her answers are correct (ii) 3 of her answers are correct (iii) 1 of her answer is correct
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Answer:
(i) 6 correct and 4 incorrect
6 correct =6×4=24 4 incorrect=4×(-2)=-8
score=24-8=16
(ii) 3 correct and 7 incorrect
3correct =3×4=12. 7 incorrect=7×(-2)=-14
score=12-14=-2
(iii) 1 correct and 9 incorrect
1 correct=1×4=4
9 incorrect=9×(-2)=-18
score=4-18=-14
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