MBA Exam

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

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MBA Other Question

[243^log(base81)x] -(2x) = [2^log(base16)(x+2)] -8find the sum of all real values of x that satisfies the equation...??

1) 16
2) 20
3) 12
4) 18
5) None of these
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