MBA Exam

A rational number A/B where A and B are co-prime, is converted into a decimal number. If both A and B are less than 100, then for how many values of B will A/B always be a terminating decimal?

1) 40
2) 16
3) 14
4) 20

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MBA Other Question

Usually the time for which the boy drives at ‘a’ km/hr, ‘2.5a’ km/hr and
‘4a’ km/hr is in the ratio 2:1:3. If this ratio becomes 4:1:1, the boy
reaches 30 minutes late. Find by how much time (approximate) the boy
will be late to school if this ratio is 3:2:1?

1) 11.7
2) 14.6
3) 19.7
4) 14.3
5) CBD
F(x) is a cubic polynomial and the coefficients of F(x) are rational. If the graph of F(x) touches the x-axis, then how many rational roots does F(x) = 0 have?

1) 0
2) 1
3) 2
4) 3