A) 54 km/hr
B) 45 km/hr
C) 56 km/hr
D) 50 km/hr
Correct Answer: A
Solution :
A man travelling the car count 19 poles in a minute. Distance between two poles = 50 m. \[\therefore \] Distance between 19 poles \[=~\,\,18\times 50=900\text{ }m\] Speed of man sitting in car \[\frac{\text{Distance}}{Time}\] \[=\frac{900}{60}=15\times \frac{18}{5}=\underline{\mathbf{54}\,\mathbf{km/hr}}\]You need to login to perform this action.
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