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1. |
A motorboat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the motorboat and speed of the water current respectively? |
A. | 0.12986111111111 |
B. | 0.29791666666667 |
C. | 0.21111111111111 |
D. | 0.33541666666667 |
Answer» E. | |