A) 16 km/h
B) 8 km/h
C) 12 km/h
D) 14 km/h
Correct Answer: C
Solution :
Distance already covered \[=\frac{3}{4}\times 12=9\,\text{km}\] Time spent \[=\frac{2}{3}\times 45\,\min \,=30\,\min \] Distance left = (12 - 9) km = 3 km Time left = (45 - 30) min = 15 min \[\therefore \] Required speed \[=\frac{3}{(15/60)}km/h=12\,km/h\]You need to login to perform this action.
You will be redirected in
3 sec