MBA Exam

if from a circular sheet of paper of radius 15cm a sector of 144 degree is removed and the remaining is used to make a conical surface, then the angle at the vertex will be

1) sin^(-1)(3/10)
2) sin^(-1)(6/5)
3) 2sin^(-1)(3/5)
4) 2sin^(-1)(4/5)

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MBA Other Question

P, Q and R are in arithmetic progression but not in geometric progression. Their squares are in harmonic progression. 2Q2 + PR equal

1) 3
2) 2
3) 1
4) 0
a square piece of side 10 cm has got all its corners cut in the shape of square .then the sides are folded to form an open box.what is the max volume of the box.(all values are integer values)

1) 72
2) 64
3) 36
4) 80