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OpenStudy (anonymous):
In an examination paper, one mark is awarded for every correct answer while 0.25 mark is deducted for every wrong answer. A student answered 120 questions and got 20 marks. How many questions did he answer correctly?
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OpenStudy (anonymous):
Assuming number of correct answers as x and wrong answers as y....... i got the equation 1(x)-0.25(y) = 20. Can you help with other equation?
OpenStudy (anonymous):
x+y=120???
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