MBA Exam

In a test consisting of 15 questions, 3 marks are awarded for a correct answer, 1 mark is deducted for an incorrect answer and no mark is awarded for an unattempted question. If a student attempts at least one question in the paper, what is the number of distinct scores that he can get?

1) 57
2) 58
3) 59
4) None of These

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MBA Other Question

In how many ways can a selection be made of letters out of 5As, 4Bs, 3Cs, 2Ds and 1Es ?

1) 70
2) 71
3) 3003
4) none of these
Hi,Can anyone help me in solving this ques ?2^a + b^2 = 100000I dont know the exact answer.. Pls post the procedure