MBA Exam

ABCD is a rhombus having area 96 sq units. BD is joined and O is the pt of intersection of the bisectors of angles ADB & ABD. From O a perpendicular is drawn to BD. Its length is 4cm. Then l(BC) =?. Given angle DCB = 60 degreesP.S. post answer with explanation

1) 8 units
2) 4 units
3) 6 units
4) 12 units

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MBA Other Question

Let theequation 8(x/(x+2)) = 6/3x has n roots m(1), m(2), ..., m(n) suchthat m(1) >= m(2) >= ... >= m(n). Then the numerical value ofm(1) - m(2) - ... - m(n) is

1) 2+3log2/log3
2) 2-3log2/log3
3) 3+2log2/log3
4) 3-2log2/log3
5) None of these
sum of divisors of 2^5*3^4*5^2 is

1) 3^2.7.11^2
2) 3^2.7.11^2.31
3) 3.7.11.31
4) None