MCQOPTIONS
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| 1. |
A person observes from an upward observation tower that a car is coming towards the tower with the same speed. If it takes 12 minutes to change the depression angle from 30° to 45°, how soon will the car reach the inspection tower? |
| A. | 16 minutes 23 seconds |
| B. | 12 minutes 34 seconds |
| C. | 11 minutes 23 seconds |
| D. | 12 min 50 sec |
| Answer» B. 12 minutes 34 seconds | |