In a class test containing 10 questions of 5 marks are awarded for every correct answer and (-2) for every incorrect answer. sita get 3 correct and 7 incorrect answer .find her score?
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In a class test containing 10 questions of 5 marks are awarded for every correct answer and (-2) for every incorrect answer. sita get 3 correct and 7 incorrect answer .find her score?
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Answer:
Let the no.of marks of correct question be x
Let the no. of marks for incorrect question be y
Step-by-step explanation:
so,
A.T.Q
3x+7y=total marks
3(5)+7(-2)=total marks
15-14=total marks
1=total marks