A student goes to school at the rate of $$2\frac{1}{2}$$ km/hr and reaches 6 min late. If he travels at the speed of 3 km/hr he is 10 min early. What is the distance to the school ?
A. 4 km
B. $$3\frac{1}{4}$$ km
C. 1 km
D. $$3\frac{1}{2}$$ km
Answer: Option A
Solution(By Examveda Team)
Let the distance between school and home be = DAccording to the given information :
$$\frac{D}{{2\frac{1}{2}}} - \frac{D}{3} = 16{\text{ minutes}}$$
$$\eqalign{ & \therefore \frac{{2D}}{5} - \frac{D}{3} = \frac{{16}}{{60}} \cr & \Rightarrow \frac{{6D - 5D}}{{15}} = \frac{{16}}{{60}} \cr & \Rightarrow D = \frac{{16}}{{60}} \times 15 \cr & \Rightarrow D = 4{\text{ km}} \cr} $$
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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