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In an MBA entrance exam, a candidate attempts X questions correctly and Y questions incorrectly such that X = 2Y - 5. Each correct answer fetches 1.5 marks whereas for each incorrect answer 0.5 marks are deducted.
 
Q.If a student has the same number of correct and incorrect  answers, what is his score? 
  • a)
    7.5
  • b)
    5.0
  • c)
    4.5
  • d)
    6.0
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In an MBA entrance exam, a candidate attempts X questionscorrectly and...
Here, X = Y
Y = 2 Y - 5 which gives Y = X = 5
A student gets 1.5 marks for each correct answer and loses 0.5 marks for each incorrect answer.
Total marks = 1.5(5) - 0.5(5) = 7.5 - 2.5 = 5.0
Hence, option 2.
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Most Upvoted Answer
In an MBA entrance exam, a candidate attempts X questionscorrectly and...
X=2y-5. x and y are same means x is 5 . so 5 correct answers gives 7.5 and 5 wrong answers deducts2.5 . so total score is 5.
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Community Answer
In an MBA entrance exam, a candidate attempts X questionscorrectly and...
Here, X = Y
Y = 2 Y - 5 which gives Y = X = 5
A student gets 1.5 marks for each correct answer and loses 0.5 marks for each incorrect answer.
Total marks = 1.5(5) - 0.5(5) = 7.5 - 2.5 = 5.0
Hence, option 2.
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In an MBA entrance exam, a candidate attempts X questionscorrectly and Y questions incorrectly such that X = 2Y - 5. Each correct answer fetches 1.5 marks whereas for each incorrect answer 0.5 marks are deducted.Q.If a student has the same number of correct and incorrect answers, what is his score?a)7.5b)5.0c)4.5d)6.0Correct answer is option 'B'. Can you explain this answer?
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