In a quiz, each correct answer gives x marks and each wrong answer takes away y marks. Aman got 5 correct and 2 wrong and scored 11 marks, so 5x−2y=11. If each correct answer is worth 3 marks (x=3), how many marks are deducted per wrong answer (y)?
Class 9Solutions of a Linear EquationLinear Equations
A4
B1
C3
D2
Step-by-Step Solution
5(3)−2y=11, so 15−2y=11, giving 2y=4,y=2 marks deducted per wrong answer.
Answer: D) 2
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