If the product of `n` positive numbers is `n^n`. Then their sum is

The product of n positive numbers is unity. Then their sum is:

The product of n positive numbers is unity. Then their sum is :

If the product of 'n' positive numbers is unity, then their sum is

If the product of n positive numbers is 1, then their sum will be

If the product of n positive number is unity, then their sum is

If the product of n positive numbers is 1, then their sum is

If the product of n positive numbers is 1, then their sum is

The product of n positive numbers is unity, then their sum is (1991,2M) a positive integer (b) divisible by n equal to n+(1)/(n) (d) never less than n