In an examination paper, containing 30 questions, 5 marks are awarded for every correct answer and (– 3) marks for every incorrect answer. Find the score of each of the following students: (i) Tarun gets 23 correct out of 30 questions. (ii) Aditya attempts all 30 questions and gets 8 incorrect.
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Answer:
Tarun's score is 94 & Aditya's score is 86.
Step-by-step explanation:
Tarun's marks
(23×5)-(7×3)
=115-21
=94.
Aditya's marks
(22×5)-(8×3)
=110-24
=86.
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tarun scores 94
Aditya scores 86
Positive marks of tarun
23*5=115
Negative marks of tarun
30-23=7
7*3=21
Total score
=>115-21
Positive marks of aditya
30-8=22
22*5=110
Negative marks of aditya
8*3=24
Total score
=>110-24
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