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1. |
A boy stated from his house on bicycle at 10 am at a speed of 12 km per hour. His elder brother started after 1 hr 15 min on scooter along the same path and caughthim at 1.30 pm. The speed of the scooter will be (in km/hr) ? |
A. | .5 km/hr |
B. | 6 km/hr |
C. | $18\frac{2}{3}$$ km/hr |
D. | km/hr |
Answer» D. km/hr | |