In a class test containing 20 questions, for mark are given for every correct answer and (-2) marks are given for every wrong answer. give the answer of following questions:
(a) Karan attempts all the questions but only 14 of them answers are correct, find his total score.
(b) yesh attempts 14 questions and only 2 of them answers are wrong, find his total score.
Answer:
(a) Karan correct answer
=14×4=56
his incorrect answer=6×(-2)=-12
so, his total score=56+(-12)=44.
(b) yash incorrect answer
=2×(-2)=-4
his correct answer=12×4=48
so,his total score=48+(-4)=44.
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Step-by-step explanation:
(a) Karan correct answer
=14×4=56
his incorrect answer=6×(-2)=-12
so, his total score=56+(-12)=44.
(b) yash incorrect answer
=2×(-2)=-4
his correct answer=12×4=48
so,his total score=48+(-4)=44.
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