MBA
Exam
A candidate takes a test and answers all the questions. He gets 1 mark for each correct answer and one-fourth mark is deducted for each wrong answer. If he has answered at least one question wrongly and has secured a total of 152, then the number of questions in the paper could be 1) 189 2) 182 3) 243 4) 196
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- 2) 182
If number of correct answer=x & Wrong answer=y
then x-0.25y=152 or 4x-y=608
Among the given options only the option 182 can give number of question as a whole integer
if x+y=182 y=182-x ,if substituted in above equation 4x-(182-x)=608 =>5x=790
x=158=Correct answers So Wrong answers=24 - 11 years agoHelpfull: Yes(1) No(1)
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