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1. |
The angle of elevation of the top of two vertical towers as seen from the middle point of the line joining the foot of the towers are 60 and 30 respectively. The ratio of the heights of the towers is ? |
A. | 2 : 1 |
B. | 3 : 1 |
C. | 3 : 2 |
D. | 3 : 1 |
Answer» E. | |