MBA Exam

Let d1, d2, d3, ……. dk be all the factors of a positive integer n including 1 and n. If d1 + d2 + d3 + ------- + dk = 72,

1) k<sup>2</sup> / 72
2) 72 / k
3) 72 / n
4) 1 / 72

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MBA Other Question
How many combinations for the lenghts of the sides of a quadrilateral are possible such that the perimeter of the quadrilateral is 10 units and lengths of the sides only have integer values?

1) 6
2) 5
3) 4
4) 3
 Find the value of 20th bracket in the given series(1)+(2+3)+(4+5+6)+(7+8+9+10)..............

1) 4010
2) 8020
3) 2005