A woman begins bicycling with a pace of 8 kmph and she increases her pace every hour by 2 kmph. She does not increase her pace as soon as her pace reaches her maximum speed of 12 kmph. How many hours did she bicycle if she traveled 64 kms? Choose the correct choice.
A) 6 1â„7 hours
B) 6 2â„7 hours
C) 8 2â„7 hours
D) 5 5â„6 hours
E) 6 1â„3 hours
Distance covered in first hour = 8 Ã— 1 = 8 km   Distance covered in next hour = 10 Ã— 1 = 10 km   Distance covered in next hour = 12 Ã— 1 = 12 km   Distance covered in first three hours    8 + 10 + 12= 
<gadget id="calculator"> 8 + 10 + 12</gadget>
<output>30</output>
30 km   Remaining distance= 64 â€“ 30 = 34 km.   Now, this distance will be covered at the speed of 12 km/hr.   âˆ´ Time taken = 34â„12 = 17â„6 hour.   Total time= 3 + 1â„3 = 3 17â„6 hour = 5 5â„6 hour   Answer 5 5â„6 hours
<result>D</result>
A woman begins bicycling with a pace of 8 kmph and she increases her pace every hour by 2 kmph. She does not increase her pace as soon as her pace reaches her maximum speed of 12 kmph. How many hours did she bicycle if she traveled 64 kms?