A train 100 m long is running at the speed of 30 km/hr. The time (in second) in which it passes a man standing near the railway line is :
A. 10 seconds
B. 11 seconds
C. 12 seconds
D. 15 seconds
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & {\text{Speed : }} \cr & = {\text{ }}30{\text{ }}km/hr \cr & = {\text{ }}30 \times \frac{5}{{18}}{\text{ }}m/\sec \cr & = \frac{{25}}{3}m/\sec \cr & {\text{So, time = }}\frac{D}{S} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \frac{{100}}{{\frac{{25}}{3}}} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 12 \,\,\text{seconds} \cr} $$Related Questions on Speed Time and Distance
A. 48 min.
B. 60 min.
C. 42 min.
D. 62 min.
E. 66 min.
A. 262.4 km
B. 260 km
C. 283.33 km
D. 275 km
E. None of these
A. 4 hours
B. 4 hours 30 min.
C. 4 hours 45 min.
D. 5 hours
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