12. In a Mathematics question paper of an engineering entrance examination, the total number of questions
are 50. According to the marking scheme, 5 marks are given for every correct answer and -3 marks for
every incorrect answer, and 0 for questions not attempted.
(a) Saurabh attempts all questions but only 45 of his answers are correct. What is his total score in
Mathematics?
(b) Anmol gets 30 correct and 5 incorrect answers out of 35 questions he attempts. What is his score
in Mathematics?
With step by step
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a as he attempted 45 then it will be 225marks
but his 5 questions are wrong so he will get as 210
b anmol gets 150 as his 30 ×5 =150
150 - 15 = 135
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