MBA Exam

Letters of the word BLACKI are arranged in order such that B is not at 1st, A is not at 3rd and K is not at 5th. In how many ways can this be done?

1) 336
2) 426
3) 486
4) none of these

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MBA Other Question

if y satisfies the relation 2- 1/m < y <= 4 + 1/m, for all positive integral values of m, then the range of y is :-

1) 2 < y <5
2) 2 < y <= 4
3) 1 < y <= 5
4) 2 <= y <= 4
Let S be the set of 5 digit numbers formed by the digits 1,2,3,4 and 5, using each digit exactly once such that exactly two odd positions are occupied by odd digits. What is the sum of the digits in the rightmost position of the numbers in S?

1) 228
2) 216
3) 294
4) 192