MBA Exam

If ‘a’ is a natural number less than 200 and ‘b’ is any whole number, for how many values of ‘a’, will the following equation satisfy a2 = 24b + 1.

1) 33
2) 34
3) 67
4) 66
5) None of these

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MBA Other Question
For how many ordered pairs (a,b) of natural numbers is the LCM of a and b is 2^3 *5^7 *11^13 ?LCM ??

1) 2835
2) 3448
3) 3572
4) 2656
 how many terms,at the minimum of sequence 1+1/2+1/3+....must be together so that sum will not be less than 3.

1) 16
2) 17
3) 18
4) 20