MBA Exam

If f(n) = squareroot(24n + 1), where n is a positive integer, then what can be said about f(n) ?

1) f(n) is prime for some n, but not infinite n
2) f(n) is composite for some n, but not infinite n
3) both (a), (b) are true
4) both (a), (b) are false

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MBA Other Question

A line drawn thru P (6,7) making an angle of 45degree with x-axis cuts x-axis at Q, Find PQ.

1) 7
2) 7*sq.root2
3) 7*sq.root3
4) 6
5) 6*sq.root3
The crew of an 8 member rowing team is to be chosen fom 12 men, of which 3 must row on one side only and 2 must row on the other side only. Find the number of ways of arranging the crew with 4 members on each side.

1) 40320
2) 30240
3) 60480
4) 10080
5) None of these