MBA Exam

If N = 9999.....upto 18 terms then how many zero's are there in N^2?

1) 16
2) 17
3) 18
4) None

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MBA Other Question

what is the total no of ways of selecting atleast one item from each of the 2 sets containing 6 different items each ? 2856 ; 3969 ; 480 ; none

1) 1
2) 2
3) 3
4) 4
an advertisement board is to be designed with 6 vertical stripes using some or all of the colours: red,blue,green,black and orange. in how many ways can the board be designed such that no 2 adjacent stripes have the same colour ? (plz with solution)

1) 1204
2) 1024
3) 5120
4) 2440