MBA Exam

there are 3 states and 3 students from each state. In how many ways 5 students can be selected, so that at least 1 student is chosen from each state......

1) 405
2) 108
3) 81
4) 144

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MBA Other Question

The number of divisors of every natural number from 1 to 1000 is calculated. Natural number which has the highest number of divisors lies in the range...

1) 750 - 790
2) 790 - 830
3) 830 - 870
4) above 870
There are 6 straight lines in a plane, no 2 of which are parallel and no 3 of which pass through the same point. If their points of intersection are joined, then the number of additional lines thus introduced is

1) 45
2) 78
3) 105
4) None of these