Latest TCS Aptitude Question SOLUTION: A test has 50 questions . A student scores 1 mark for a correct answer, -1/3 for a wrong answer, and-1/6 for not attempting a question .If the net score of a student is 32, the num

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(#M40011976) TCS question Keep an EYE

A test has 50 questions . A student scores 1 mark for a correct answer, -1/3 for a wrong answer, and-1/6 for not attempting a question .If the net score of a student is 32, the number of questions answered wrongly by that students cannot be less than?

Asked In TCS suman prabhakar (11 years ago)

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MP   (11 years ago)

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No. of correct answers = a
No of wrong answers = b
No of unattempted questions = c
Now as per Ques.
a + b + c = 50 and,
(a - b*1/3 - c*1/6 =32 ) => 6a -2b - c = 192
Adding both Equ.
7a - b = 242 or 7a - 242 = b
we know that a & b must be positive integers including 0
least possible no. of b = 3 for b to be +ve where a = 35 (7*35 - 242 = 3 )

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