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1. |
The distance between two station A and B is 220 km. A train leaves A toward B at an average speed of 80 km/hr. after half an hour another train leaves B toward A at an average speed at 100 km/hr. the distance of the point of two train meet, from A is ? |
A. | 120 km. |
B. | 130 km. |
C. | 140 km. |
D. | 150 km. |
Answer» B. 130 km. | |