In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and 0 for questions not attempted. (i) Mohan gets 4 correct and 6 incorrect answers. What is his score? (ii) Greeshma gets 5 correct answers and 5 incorrect answers, what is her score?
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Step-by-step explanation:
We need to find the scores of these students. Let us say for any student who gave x right questions and y wrong questions, his total marks is given as 5x + (−2)y i.e. 5x − 2y total marks. Reshma gets 5 correct answers and 5 incorrect answers. So, her total score is 5×5−2×5=15 marks.
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Answer:
mohan
1. 4×5=20
6×-2=-12
20-12=8
greeshma
2. 5×5=25
5×-2=-10
25-10=15
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