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Question
In a test of 30 questions, 5 marks are given for each correct attempt and 3 marks are deducted for each wrong attempt. No mark is given or deducted for not attempting a question. If Siddharth answered 20 questions correctly and rest of the questions incorrectly, then what will be his score?
In a test of 30 questions, 5 marks are given for each correct attempt and 3 marks are deducted for each wrong attempt. No mark is given or deducted for not attempting a question. If Siddharth answered 20 questions correctly and rest of the questions incorrectly, then what will be his score?
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Solution
The correct option is B 70
Siddharth has answered 20 questions correctly, so
Marks obtained = 20×5=100
He answered 30−20=10 questions incorrectly, so
Marks deducted = 10×(−3)=−30
Final score = 100−30=70
Siddharth has answered 20 questions correctly, so
Marks obtained = 20×5=100
He answered 30−20=10 questions incorrectly, so
Marks deducted = 10×(−3)=−30
Final score = 100−30=70
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