A) 60 min
B) 70 min
C) 75 min
D) 80 min
Correct Answer: C
Solution :
Let initial time taken \[=t\,\,h\] Time taken when travelled at speed\[\frac{3}{4}\]of usual speed \[=\frac{4}{3}t\,\,h\]\[\therefore \]\[\frac{4}{3}t-t=25\Rightarrow \frac{t}{3}=25\] \[\therefore \] \[t=75\,\,\min \]You need to login to perform this action.
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