A man can reach a certain place in 30 hours. If he reduces his speed by $$\frac{1}{15}$$th, he comes 10 km less in that time. Find his speed in km per hour.
A. 6 km/hr
B. $$5\frac{1}{2}$$ km/hr
C. 4 km/hr
D. 5 km/hr
Answer: Option D
Solution(By Examveda Team)
$$\eqalign{ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Actual}}\,\,\,\,\,\,\,\,\,\,\,{\text{Reduced}} \cr & {\text{Ratio of speed}} = {\text{15}}\,\,\,\,\,\,\,\,\,{\text{:}}\,\,\,\,\,\,\,\,\,\,{\text{14}} \cr & {\text{Ratio of time}}\,\,\, = {\text{14}}\,\,\,\,\,\,\,\,\,{\text{:}}\,\,\,\,\,\,\,\,\,{\text{15}} \cr & {\text{14}} \to {\text{28 hrs}} \cr & {\text{15}} \to {\text{30 hrs}} \cr & {\text{So, in 2 hrs it travels 10 kms}} \cr & {\text{Speed = }}\frac{{10}}{2} = 5{\text{ km/hr}} \cr} $$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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