MBA Exam

If 3 positive real number x,y,z are in AP. xyz=4 what is the minimum value of y ?

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 HCF of three natural numbers x, y and z is 13. If the sum of x, y and z is 117, then how many ordered triplets (x, y, z) exist?

1) 27
2) 28
3) 54
4) 55
 A man borrows 6000 at 5% interest, on reducing balance, at the start of the year. If he repays 1200 at the end of each year, find the amount of loan outstanding, in , at the beginningof the third year. is the ANSWER 5100 PLEASE CONFORM