Correct Answer - Option 5 : None of these
Given:
Speed by bike = 30 km/h
Speed by walk = 20 km/h
Time taken by bike = 2 hours
Total duration of journey = 3 hours
Formula used:
Speed = Distance/Time
Calculations:
Time taken by walk = 3 - 1 = 2 hours
Distance travelled by bike = 30 × 2 = 60 km
Distance travelled by walk = 20 × 1 = 20 km
Total distance travelled = 60 + 20 = 80 km
∴ Total distance travelled by him is 80 km.
