Correct Answer - Option 5 : 47
Given:
First 64 km distance is covered in 110 minutes
Remaining 77 km distance covered in 70 minutes
Formula used:
Average speed = Total distance/Total time
Calculation:
Total distance = 64 + 77 = 141 km
Total time = 110 + 70 = 180 minutes = 180/60 = 3 h
Average speed = 141/3 = 47 km/h
∴ The average speed of bike is 47 km/h.