MBA Exam

Find the units digits of the LCM of 7^3001â€“ 1 and 7^3001+ 1

1) 8
2) 6
3) 9
4) 4

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MBA Other Question

The integer sequence a1, a2, a3, ... satisfies a(n+2) = a(n+1) - a(n) for n > 0. The sum of the first 1492 terms is 1985, and the sum of the first 1985 terms is 1492. The sum of the first 2001 terms is

1) 986
2) 0
3) 1476
4) None of these
N is a set of all natural numbers less than 500 which can be written as sum of two or more consecutive natural numbers.Find the maximum number of elements possible in N?

1) 250
2) 492
3) 493
4) 490