A and B start at the same time with speed of 40 km/hr. and 50 km/hr respectively. If in covering the journey A takes 15 min longer than B, the total distance of the journey is :
A. 40 km
B. 48 km
C. 50 km
D. 52 km
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{ A }}:{\text{ B}} \cr & {\text{Ratio of speed = }}\,4\,\,:\,\,5 \cr & {\text{Ratio of time = }}\,\,\,\,5{\text{ }}:{\text{ }}4{\text{ }} \cr & (5 - 4){\text{ unit = 15 unit}} \cr & {\text{1 unit = 15 min}} \cr & {\text{So, time taken by B :}} \cr & {\text{ = 4}} \times {\text{15}} \cr & {\text{ = 60 min}} \cr & {\text{ = 1 hr}} \cr & {\text{Distance = S }} \times {\text{ T }} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{ = 50}} \times {\text{1 }} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{ = 50 km}} \cr} $$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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