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1. |
Amit travelled from A to B at an average speed of 80 km/h. He travelled the first 75% of the distance in two-third of the time and the rest at a constant speed of x km/h. The value of x is: |
A. | 56 |
B. | 64 |
C. | 54 |
D. | 60 |
Answer» E. | |