A bike covers a certain distance at the speed of 81km/h in 7 hrs. If the bike was to cover the same distance in approximately 9 hrs, at what approximate speed should the bike travel? Select:	A) 80 km/h	B) 67 km/h	C) 90.14 km/h	D) 63 km/h	E) 92 km/h
Ans.(D)   Sol. Total distance = 81 × 7 = 567 km   Now speed = 567/9= 
<gadget id="calculator">567/9</gadget>
<output>63</output>
63 km/h
<result>D</result>
A bike covers a certain distance at the speed of 81km/h in 7 hrs. If the bike was to cover the same distance in approximately 9 hrs, at what approximate speed should the bike travel?