MBA Exam

In an exam, a student is given five possible answers for each question. 4 marks will be given for every correct answer and -1 mark for a wrong answer. If the student guesses and marks, what be will the expected marks for a single question?No excuses

1) 0
2) 1
3) 1/2
4) 1/4

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MBA Other Question

S can at max 1st 1000 natural no'swhat is the no. of element in S if -1.no no. is prime2. any two no's selected are coprimes

1) 11
2) 12
3) 13
4) 14
72.11 - Product of mean, median, mode of 2, 5, 9, 11, 13, 13, 17, 18 can be expressed as a product of 2 co-prime nos in how many ways ?

1) 4
2) 5
3) 6
4) 8