A car runs at the speed of 25 km per hour when not serviced and runs at 75 kmph when serviced. After servicing the car covers a certain distance in 5 hours. How much time will the car take to cover the same distance when not serviced?	Pick:
A) 8 hours
B) 16 hours
C) 15 hours
D) 7 hours
E) None
Explanation :   Time = 75*5 / 25= 
<gadget id="calculator">75*5 / 25</gadget>
<output>15</output>
15 hours   Answer â€“ 7 hours
<result>D</result>
A car runs at the speed of 25 km per hour when not serviced and runs at 75 kmph when serviced. After servicing the car covers a certain distance in 5 hours. How much time will the car take to cover the same distance when not serviced?