A) 15 minutes
B) 25 minutes
C) 50 minutes
D) \[1\frac{1}{2}\]hours
Correct Answer: C
Solution :
Time taken to cover 20 km at the speed of 5km/hr = 4 hours \[\therefore \]Fixed time = 4 hours \[-\] 40 minutes = 3 hour 20 minutes Time taken to cover 20 km at the Speed of 8 km/hr \[=\frac{20}{8}=2\]hours 30 minutes \[\therefore \]Required time = 3 hours 20 minutes \[-\]2 hours 30 minutes = 50 minutesYou need to login to perform this action.
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