MBA Exam

If three real number x, y, z are in A.P such that xyz=4, then what will be he min value of y?Plz post the explanation to the question.aslo if u can post sol for other question by rajiv111

1) 2^1/3
2) 2^2/3
3) 2^1/4
4) 2^3/4
5) 2^4/3

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MBA Other Question

The LCM of two numbers a and b is p^p q^q r^r, where p, q and r are three distinct prime numbers. The number of possible ordered pairs (a, b) is(Approach Please.. )

1) (p + 1) (q + 1) (r + 1)
2) p^2 q^2 r^2
3) (2p + 1) (2q + 1) (2r + 1)
4) None of these
find 2^32-(2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)plz explain

1) 0
2) 1
3) 2
4) 2^16