A man drives his car and starts with the speed of 25 kmph with its speed increasing every hour by 5 kmph. In how many hours would it take him to drive 100 kms?	Choices.
A) 4 1â„4 hours
B) 3 1â„2 hours
C) 3 hours 15 minutes
D) Cannot be determined
E) None of these
Distance covered in first hour = 25 Ã— 1 = 25 km   Distance covered in next second hour = 30 Ã— 1 = 30 km   Distance covered in next third hour = 35 Ã— 1 = 35 km   Distance covered in first three hours    25 + 30 + 35= 
<gadget id="calculator"> 25 + 30 + 35</gadget>
<output>90</output>
90 km   Remaining distance= 100 â€“ 90 = 10 km.   Now, this distance will be covered at the speed of 40 km/hr.   âˆ´ Time taken = 10â„40 = 1â„4 hour.   Total time= 3 + 1â„4 = 3 1â„4 hour   Answer 3 hours 15 minutes
<result>C</result>
A man drives his car and starts with the speed of 25 kmph with its speed increasing every hour by 5 kmph. In how many hours would it take him to drive 100 kms?