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1. |
A train runs for five hours at a speed of 40 kmh-1 and for the next 20 hours at a speed of 30 kmh- 1 , covering 2/3 of the total distance. If the remaining distance is to be covered in 8 hours, what s |
A. | 50 kmh-1 |
B. | 40 kmh-1 |
C. | 30 kmh-1 |
D. | 20 kmh-1 |
Answer» B. 40 kmh-1 | |