MBA Exam

Find the sum of the following expression. 6 (1!) + 13 (2!) + 22 (3!) + 33 (4!) + 46 (5!) + ……….upto 10th term.

1) 10! + 12! – 2.4!
2) 10! – 12! – 2.4!
3) 2.10! + 12! – 4!
4) 10! + 2.11! – 4!
5) 12! + 2.11! – 4

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MBA Other Question
1/a + 1/b + 1/c = 1, it is also given that a, b and c are positive integers; such that a ≤ b ≤ c, then which of the following can not be the sum of a,b and c of any solution?

1) 9
2) 10
3) 11
4) 12
 Max power of 3 in 81.82.83.84..................................2431. 832. 853. 874. 89

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