Walking $${\frac{6}{7}}$$ th of his usual speed, a man is 12 minutes too late. The usual time taken by him to cover that distance is :
A. 1 hour
B. 1 hr 12 min
C. 1 hr 15 min
D. 1 hr 20 min
Answer: Option B
Solution(By Examveda Team)
New speed = $$\frac{6}{7}$$ of usual speedNew time = $$\frac{7}{6}$$ of usual time
$$\therefore \left( {\frac{7}{6}{\text{ of usual time}}} \right) - $$ $$\left( {{\text{usual time}}} \right)$$ $$ = \frac{1}{5}{\text{ hr}}$$
$$\eqalign{ & \Rightarrow \frac{1}{6}{\text{ of usual time = }}\frac{1}{5}{\text{ hr}} \cr & \Rightarrow {\text{usual time = }}\frac{6}{5}{\text{ hr}} \cr & \Rightarrow {\text{usual time = 1 hr 12 min}} \cr} $$
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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