MBA Exam

If a > 0, b > 0, c > 0 and 30abc = 256. Find minimum value of 3a + 4b + 5c?

1) 28
2) 18
3) 24
4) 48

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MBA Other Question

for positive real values A,B,C,D such that A+B+C+D=8 .Find the minimum value of 1/A +1/B +1/C +1/D ??

1) 1
2) 2
3) 2root(2)
4) 3
the straight lines x+2y=0 and ax+by+c=0 have an odd number of points in common.which of the following is definitely false..?

1) a=b
2) a=2b
3) b=2a
4) a+b=0