A car covered 150 km in 5 hours. If it travels at one-third its usual speed, then how much more time will it take to cover the same distance?
A. 14 hours
B. 10 hours
C. 12 hours
D. 8 hours
Answer: Option B
Solution(By Examveda Team)
$$\eqalign{ & \underleftrightarrow {\,\,\,\,\,\,\,\,\,\,150{\text{ km}}\,\,\,\,\,\,\,\,\,\,} \cr & {\text{Initial speed}} = \frac{{150}}{5} = 30{\text{ km/h}} \cr & {\text{New speed}} = \frac{1}{3} \times 30 = 10{\text{ km/h}} \cr & {\text{Time taken to cover 150 km}} = \frac{{150}}{{10}} = 15{\text{ h}} \cr & {\text{Time difference}} = 15 - 5 = 10{\text{ hour}} \cr} $$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
Join The Discussion