A) 5 hrs
B) \[5\frac{1}{2}hrs\]
C) 6 hrs
D) \[6\frac{1}{2}hrs\]
Correct Answer: B
Solution :
Average speed of scooters = \[\frac{100+120}{\frac{100}{50}+\frac{120}{40}}=\frac{220}{5}km/hr\] = 44 km/hr Time taken by him to cover 242 km = \[\frac{242}{44}=\mathbf{5}\frac{\mathbf{1}}{\mathbf{2}}\]hoursYou need to login to perform this action.
You will be redirected in
3 sec