Amit starts from a point A and walks to another points B and then returns from B to A by his car and thus takes a total time of 6 hours and 45 min. If he had driven both ways in his car, he would have taken 2 hours less. How long would it take for him to walk both ways ?
A. 7 hrs 45 min
B. 8 hrs 15 min
C. 8 hrs 30 min
D. 8 hrs 45 min
Answer: Option D
Solution(By Examveda Team)
Let the distance be x km(Time taken to walk x km) + (Time taken to drive x km) = $$\frac{27}{4}$$ hrs
⇒ (Time taken to walk 2x km) + (Time taken to drive 2x km) = $$\frac{27}{2}$$ hrs
But time taken to drive 2x km = $$\frac{19}{4}$$ hrs
∴ Time taken to walk 2x km :
= $$\frac{27}{2}$$ - $$\frac{19}{4}$$
= $$\frac{35}{4}$$ hrs
= 8 hrs 45 min
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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