MBA Exam

Let x be the smallest integer such that the number N = (16^x) (5^800) has 805 digits. Then the sum of digits of N is

1) 19
2) 25
3) 4
4) 11

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MBA Other Question

f(x)=f(f(x))=f(x^2)....how many such functions with degree >2 exist??

K = 1^2 + 2^2 + 3^2+ ...+ M^2such that M< 55How many values of M exist so that K is divisible by 4

1) 10
2) 11
3) 12
4) None of these