MBA Exam

If positive integers a, b, c are such that the quadratic equation ax2 - bx + c = 0 has two distinct real roots in the open interval (0, 1), find the minimum value of a.

1) 2
2) 3
3) 5
4) 9

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MBA Other Question

Let x, y, and z all are greater than 1, and let w be a positive number such that log w(base x)= 24log w(base y)= 40,andlog w (base xyz)= 12.Find log w (base z) ?

Detail your approach plz

1) 42
2) 36
3) 60
4) 64
A and B are two points in a plane which are 10 m apart.The angle of elevation of tower as seen from A and B are respectively as 30 and 6o degrees..If AB subtends an angle of 60 at the foot of the tower, find the height of the tower.

1) 10* root3/root7
2) 10/root7
3) 100* root3/root7
4) none