A candidate takes a test and attempts all the 100 questions in it. While any correct answer fetches 1 mark, wrong answers are penalised as follows; one-tenth of the questions carry 1/10 negative mark each, one-fifth of the questions carry 1/5 negative marks each and the rest of the questions carry 1/2 negative mark each. Unattempted questions carry no marks. What is the difference between the maximum and the minimum marks that he can score?
a) 100 b) 120 c) 140 d) none of these

• Maximum mark can scored =100
  Minimum marks = -40 =(10*1/10)+(20*1/5)+(70*1/2)
  Difference= 100-(-40)=140
• 8 years agoHelpfull: Yes(4) No(0)